Gaya APA

GUY, A, G., HREN, J, J. (1974). Elements of physical metallurgy Third Edition (3rd Edition). United States of America: ADDISON-WESLEY Publishing Company.

Gaya MLA

GUY, Albert, G.., HREN, John, J.. "Elements of physical metallurgy Third Edition". 3rd Edition United States of America: ADDISON-WESLEY Publishing Company, 1974. Text.