APA (7th ed.) Citation

Dinwiddie, D., & MacFall, R. P. (1978). Popular Mechanics complete book of rocks minerals gems fossils. Popular Mechanics Books.

Chicago Style (17th ed.) Citation

Dinwiddie, Donal, and Russell P. MacFall. Popular Mechanics Complete Book of Rocks Minerals Gems Fossils. New York: Popular Mechanics Books, 1978.

MLA (9th ed.) Citation

Dinwiddie, Donal, and Russell P. MacFall. Popular Mechanics Complete Book of Rocks Minerals Gems Fossils. Popular Mechanics Books, 1978.