R. F. Gray
发表
P. Gulliver,
F. Rehfisch,
R. F. Gray,
1964
.
R. F. Gray,
1974
.
R. F. Gray,
1960
.
Edward,
Alan,
William,
1968,
American Journal of Sociology.
R. F. Gray,
M. Webb,
1960,
American Journal of Cardiology.
R. F. Gray,
M. Webb,
1960,
NADC-MA-. United States. Naval Air Development Center, Johnsville, Pa. Aviation Medical Acceleration Laboratory.
R. F. Gray,
1953,
Africa.
R. F. Gray,
1974
.
R. F. Gray,
1963,
Comparative Studies in Society and History.