APA引文

Harris, D. V. (1980). The geologic story of the national parks and monuments (3rd ed.). Wiley.

Chicago Style (17th ed.) Citation

Harris, David V. The Geologic Story of the National Parks and Monuments. 3rd ed. New York ; Chichester: Wiley, 1980.

MLA引文

Harris, David V. The Geologic Story of the National Parks and Monuments. 3rd ed. Wiley, 1980.