Gaya APA

Krauskopf, K, B., Bird, D, K. (1995). Introduction to Geochemistry (Ed. 3). Singapore: McGraw-Hill International Editions.

Gaya MLA

Krauskopf, Konrad, B.., Bird, Dennis, K.. "Introduction to Geochemistry". Ed. 3 Singapore: McGraw-Hill International Editions, 1995. Text.