Gaya APA

Legget, R, F., Hatheway, A, W. (1988). Geology and engineering / Robert F. Legget, Allen W. Hatheway (Ed.3, Cet.1). New York: McGraw-Hill book company.

Gaya MLA

Legget, Robert, F.., Hatheway, Allen, W.. "Geology and engineering / Robert F. Legget, Allen W. Hatheway". Ed.3, Cet.1 New York: McGraw-Hill book company, 1988. Textbook.