Poland, the unexplored /
by Grace Humphrey.
APA Citation
Humphrey, G. (1931). Poland, the unexplored. [1st ed.]. Indianapolis: Bobbs-Merrill.
MLA Citation
Humphrey, Grace, 1882-. Poland, the Unexplored. [1st ed.]. Indianapolis: Bobbs-Merrill, 1931.
Warning: These citations may not always be complete (especially for serials).