APA (7th ed.) Citation

Harrison, C. J. O., Walker, C. A., & Howard, H. (1979). Studies in Tertiary avian palaeontology. Dr. W. Backhuys.

Chicago Style (17th ed.) Citation

Harrison, Colin James Oliver, Cyril Alexander Walker, and Hildegarde Howard. Studies in Tertiary Avian Palaeontology. Rotterdam: Dr. W. Backhuys, 1979.

MLA (9th ed.) Citation

Harrison, Colin James Oliver, et al. Studies in Tertiary Avian Palaeontology. Dr. W. Backhuys, 1979.