APA

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

Chicago

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

Harvard

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

MLA

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