Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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