APA

Legget R. F., Legget R. F. & Hatheway A. W. (1988). Geology and engineering. New York, NY [u.a.]: McGraw-Hill.

Chicago

Legget Robert Ferguson, Legget Robert Ferguson and Hatheway Allen W. 1988. Geology and engineering. New York, NY [u.a.]: McGraw-Hill.

Harvard

Legget R. F., Legget R. F. and Hatheway A. W. (1988). Geology and engineering. New York, NY [u.a.]: McGraw-Hill.

MLA

Legget Robert Ferguson, Legget Robert Ferguson and Hatheway Allen W. Geology and engineering. New York, NY [u.a.]: McGraw-Hill. 1988.