APA (7th ed.) Citation

McCallum, D. A. (1994). Flammulated owl: Otus flammeolus. American Ornithologists' Union ; The Academy of Natural Sciences.

Chicago Style (17th ed.) Citation

McCallum, D. Archibald. Flammulated Owl: Otus Flammeolus. Washington, D.C. : Philadelphia, PA: American Ornithologists' Union ; The Academy of Natural Sciences, 1994.

MLA (9th ed.) Citation

McCallum, D. Archibald. Flammulated Owl: Otus Flammeolus. American Ornithologists' Union ; The Academy of Natural Sciences, 1994.