Man and his physical world
[by] Dwight E. Gray.
APA Citation
Gray, D. E. (1942). Man and his physical world. New York: D. Van Nostrand Company, Inc..
MLA Citation
Gray, Dwight E., 1903-. Man And His Physical World. New York: D. Van Nostrand Company, Inc., 1942.
Warning: These citations may not always be complete (especially for serials).