APA aipamena

Legget, R. F., & Hatheway, A. W. (1988). Geology and Engineering. New York: McGraw-Hill.

Chicago Style aipamena

Legget, Robert F., và Allen W. Hatheway. Geology and Engineering. New York: McGraw-Hill, 1988.

MLA aipamena

Legget, Robert F., và Allen W. Hatheway. Geology and Engineering. New York: McGraw-Hill, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.