Style de citation APA (7e éd.)

Elman, R., & Amadon, D. (1977). First in the field: America's pioneering naturalists. Van Nostrand Reinhold Company.

Style de citation Chicago (17e éd.)

Elman, Robert, et Dean Amadon. First in the Field: America's Pioneering Naturalists. New York [i pozostałe]: Van Nostrand Reinhold Company, 1977.

Style de citation MLA (9e éd.)

Elman, Robert, et Dean Amadon. First in the Field: America's Pioneering Naturalists. Van Nostrand Reinhold Company, 1977.