Gordon A Gallup
发表
J. R. Collins,
J. M. Norbeck,
J. Collins,
1982
.
G. Gallup,
Gordon A Gallup,
2002
.
G. Gallup,
K. Aflatooni,
Kayvan Aflatooni,
1998
.
Gordon A Gallup,
M. M. Jones,
W. R. Gilkerson,
1952
.