Cita APA (7th ed.)

Rand, A. L., & Rabor, D. S. (1961). A new race of Crow. Corvus Enca, from the Philippines. Chicago Natural History Museum.

Cita Chicago (17th ed.)

Rand, Austin L., i Dioscoso S. Rabor. A New Race of Crow. Corvus Enca, from the Philippines. [Chicago]: Chicago Natural History Museum, 1961.

Cita MLA (9th ed.)

Rand, Austin L., i Dioscoso S. Rabor. A New Race of Crow. Corvus Enca, from the Philippines. Chicago Natural History Museum, 1961.