APA (7th ed.) Citation

Geological Society of America & Legget, R. F. (1982). Geology under cities. Geological Society of America.

Chicago Style (17th ed.) Citation

Geological Society of America and Robert Ferguson Legget. Geology Under Cities. Boulder, Colo.: Geological Society of America, 1982.

MLA (8th ed.) Citation

Geological Society of America and Robert Ferguson Legget. Geology Under Cities. Geological Society of America, 1982.