Cita APA (7a ed.)

Loundsbury, J. F. (1986). Introduction to geographic field methods and techniques GA151 (3rd ed.). Merrill Publishing.

Cita Chicago Style (17a ed.)

Loundsbury, John F. Introduction to Geographic Field Methods and Techniques GA151. 3rd ed. Columbia, Ohio: Merrill Publishing, 1986.

Cita MLA (9a ed.)

Loundsbury, John F. Introduction to Geographic Field Methods and Techniques GA151. 3rd ed. Merrill Publishing, 1986.