Test, F. H. (1942). The nature of the red, yellow, and orange pigments in woodpeckers of the genus Colaptes. University of California Press.
Chicago Style (17th ed.) CitationTest, Frederick Harold. The Nature of the Red, Yellow, and Orange Pigments in Woodpeckers of the Genus Colaptes. Berkeley: University of California Press, 1942.
MLA (9th ed.) CitationTest, Frederick Harold. The Nature of the Red, Yellow, and Orange Pigments in Woodpeckers of the Genus Colaptes. University of California Press, 1942.
Warning: These citations may not always be 100% accurate.