APA-Zitierstil (7. Ausg.)

Gray, D. E. (1966). Man and his physical world. D. Van Nostrand.

Chicago-Zitierstil (17. Ausg.)

Gray, Dwight E. Man and His Physical World. Princeton: D. Van Nostrand, 1966.

MLA-Zitierstil (9. Ausg.)

Gray, Dwight E. Man and His Physical World. D. Van Nostrand, 1966.