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1981
Taxonomic monograph of the genus Pityophthorus Eichhoff in north and central America (Coleoptera: Scolytidae)
Spencer
1984
Velvetleaf, Abutilon theophrasti (Malvaceae), history and economic impact in the United States
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Vorrichtung fuer Grasmaehmaschinen, um diese zum Maehen des Kartoffelkrautes geeignet zu machen
Shantz
1954
The place of grasslands in the Earth's cover
Welton et al.
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Organic food reserves in relation to the eradication of Canada thistles
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Revision of the New World species of the tribe Donaciini of the coleopterous family Chrysomelidae
Raper
1946
The role of agricultural technology in Southern social change
Rehder
1923
New species, varieties and combinations from the herbarium and the collections of the Arnold Arboretum
Safford
1918
Chenopodium nuttalliae, a food plant of the Aztecs
Tanaka
1959
A Revision of Assam Citrus: Revisio Aurantiacearum XI
Ghani
1984
Keys to the Cultivars of Keladi (Colocasia Esculenta--Araceae) in Peninsular Malaysia
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Kartoffelerntemaschine mit an die Schar anschliessendem Schuettelstabrost
Fernald
1946
Types of some American trees
Nielson
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New South American leafhoppers in the genus Docalidia, with a key to 37 species (Cicadellidae: Coelidiinae, Teruliini)
Bartlett
1913
SYSTEMATIC STUDIES ON OENOTHERA,—II. THE DELIMITATION OF OENOTHERA BIENNIS L.
Weatherby
1937
THE TYPIFICATION OF ACALYPHA VIRGINICA L.
Ellis
1914
New bees of the genus Halictus (Hym.) from United States, Guatemala and Ecuador
MacCrone
1937
A note on the tsamma and its uses among the Bushmen
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Gargutträger für Dampfgargeräte
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Greenhouse thrips and its parasitoids in coastal New South Wales
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Verfahren zur Erzielung einer zusaetzlichen Ernte von gruener Blattmasse bei Kulturpflanzen
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Haushaltsschneidemaschine, insbesondere elektromotorisch angetriebene haushaltsschneidemaschine
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Kartoffelerntemaschine mit Wurfrad und seitlich von diesem angeordnetem, angetriebenem Ablegerad
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Verfahren zur Herstellung von Messerklingen, insbesondere von Taschenmesserklingen