Gaya APA

Kraus, E, H. et al (1951). Mineralogy: An Introduction to the Study of Minerals and Crystals . United States of America: McGraw-Hill Book Company, Inc..

Gaya MLA

Kraus, Edward, Henry. et al. "Mineralogy: An Introduction to the Study of Minerals and Crystals". United States of America: McGraw-Hill Book Company, Inc., 1951. Text.