APA (7th ed.) Citation

Raethel, H., & Ahrens, C. (1981). Bird diseases ([Revised edition].). T.F.H. Publications.

Chicago Style (17th ed.) Citation

Raethel, Heinz-Sigurd, and Christa Ahrens. Bird Diseases. [Revised edition]. Neptune, N.J.: T.F.H. Publications, 1981.

MLA (9th ed.) Citation

Raethel, Heinz-Sigurd, and Christa Ahrens. Bird Diseases. [Revised edition]. T.F.H. Publications, 1981.