APA (7th ed.) Citation

Blake, E. R. (1961). Variation in the quail-dove Geotrygon frenata. Chicago Natural History Museum.

Chicago Style (17th ed.) Citation

Blake, Emmet Reid. Variation in the Quail-dove Geotrygon Frenata. [Chicago]: Chicago Natural History Museum, 1961.

MLA (9th ed.) Citation

Blake, Emmet Reid. Variation in the Quail-dove Geotrygon Frenata. Chicago Natural History Museum, 1961.