Cita APA (7th ed.)

Willard, L. C. (2009). A critical study of the Euthalian apparatus. Walter de Gruyter.

Cita Chicago (17th ed.)

Willard, Louis Charles. A Critical Study of the Euthalian Apparatus. Berlin ; New York: Walter de Gruyter, 2009.

Cita MLA (9th ed.)

Willard, Louis Charles. A Critical Study of the Euthalian Apparatus. Walter de Gruyter, 2009.