Dillman
1972
Increasing mail questionnaire response in large samples of the general public
Matteson
1974
Type of transmittal letter and questionnaire color as two variables influencing response rates in a mail survey.
DE1430530U
(https= )
Kernan
1971
Are" Bulk-Rate Occupants" Really Unresponsive?
Stenton
1929
I. Acta Episcoporum1
CH146140A
(de )
1931-03-31
Hülle für Anhängeadressen.
Inn
1986
How it works
DE556653C
(de )
1932-08-12
Briefumschlag, Postkarte, Paket o. dgl. mit unsichtbarer Absenderangabe
巻頭言阿部治 et al.
0
School Education and Ecological Identity Keitaro Morita……………… 26
DE1855008U
(de )
1962-07-12
Angebotsmappe.
WEINGLASS
1988
Henry Fuseli’s Letter of Enquiry to Paris on Behalf of Mary Wollstonecraft’s Sister, Everina
DE315200C
(https= )
Casady et al.
1966
The Modern Simplified Letter
Smith
1989
W. Holland Furlong, St Andrews and the origins of photography in Scotland
Ganz
1914
A new portrait of Sir John Godsalve by Hans Holbein the younger
AAAAee
2003
„JUILEIA EIDAVIS
Wanning
1932
The Edward M. House Collection
DE1610450U
(de )
1950-07-27
Doppelter briefumschlag.
rUBLISHED EVERY MOCTIM et al.
0
THE DAILY KENTUCKY FLAG.
Webster
1982
In Defence of Dating Precision
DE1455745U
(https= )
DE1393643U
(https= )
DE1436265U
(https= )
DE1427509U
(https= )
DE1424945U
(https= )