Cita APA (7a ed.)

Cei, J. M. A. M., Erspamer, V., & Roseghini, M. (1968). Taxonomic and Evolutionary Significance of Biogenic Amines and Polypeptides in Amphibian Skin. II. Toads of the Genera Bufo and Melanophryniscus.

Cita Chicago Style (17a ed.)

Cei, José Miguel Alfredo María, V. Erspamer, y M. Roseghini. Taxonomic and Evolutionary Significance of Biogenic Amines and Polypeptides in Amphibian Skin. II. Toads of the Genera Bufo and Melanophryniscus. 1968.

Cita MLA (8a ed.)

Cei, José Miguel Alfredo María, et al. Taxonomic and Evolutionary Significance of Biogenic Amines and Polypeptides in Amphibian Skin. II. Toads of the Genera Bufo and Melanophryniscus. 1968.