APA Style

Cox, K, G. et al (1974). The Practical Study of Crystals, Minerals, and Rocks (Ed.1 revisi). London: McGraw-Hill Book Company.

MLA Style

Cox, K., G.. et al. "The Practical Study of Crystals, Minerals, and Rocks". Ed.1 revisi London: McGraw-Hill Book Company, 1974. Text.