APA (7th ed.) Citation

Naugler, C. T. (1993). American tree sparrow: Spizella arborea. American Ornithologists' Union ; The Academy of Natural Sciences.

Chicago Style (17th ed.) Citation

Naugler, Christopher T. American Tree Sparrow: Spizella Arborea. Washington, D.C. : Philadelphia, PA: American Ornithologists' Union ; The Academy of Natural Sciences, 1993.

MLA (9th ed.) Citation

Naugler, Christopher T. American Tree Sparrow: Spizella Arborea. American Ornithologists' Union ; The Academy of Natural Sciences, 1993.