APA (7th ed.) Citation

International Ornithological Congress Basel, Portmann, A., & Sutter, E. (1955). Acta XI Congressus Internationalis Ornithologici: Basel 29. V.-5. VI. 1954. Birkhauser.

Chicago Style (17th ed.) Citation

International Ornithological Congress Basel, Adolf Portmann, and E. Sutter. Acta XI Congressus Internationalis Ornithologici: Basel 29. V.-5. VI. 1954. Basel: Birkhauser, 1955.

MLA (9th ed.) Citation

International Ornithological Congress Basel, et al. Acta XI Congressus Internationalis Ornithologici: Basel 29. V.-5. VI. 1954. Birkhauser, 1955.