Gaya APA

Krynine, D, P., Judd, W, R. (1957). Principles of Engineering Geology and Geotechnics . New York: McGraw-Hill Book Company.

Gaya MLA

Krynine, Dimitri, P.., Judd, William, R.. "Principles of Engineering Geology and Geotechnics". New York: McGraw-Hill Book Company, 1957. Text.