Gaya APA

Cox,K.G, ., (a.o), P. (1988). An Introduction to the Practical Study of Crystals, Minerals and Rocks Revised First Edition . : McGraw-Hill Book Company.

Gaya MLA

Cox,K.G, ., (a.o), Price,N.B. "An Introduction to the Practical Study of Crystals, Minerals and Rocks Revised First Edition". : McGraw-Hill Book Company, 1988. Text.