Advance agents of American destiny.
APA Citation
Nichols, R. F. (Roy Franklin). (1956). Advance agents of American destiny. Philadelphia: University of Pennsylvania Press.
MLA Citation
Nichols, Roy F. (Roy Franklin), 1896-1973. Advance Agents of American Destiny. Philadelphia: University of Pennsylvania Press, 1956.
Warning: These citations may not always be complete (especially for serials).