APA (7th ed.) Citation

Ewer, D. W., Hall, J. B., & Mitchelmore, J. A. (1975). Ecological biology. Longman.

Chicago Style (17th ed.) Citation

Ewer, D. W., J. B. Hall, and June Anthea Mitchelmore. Ecological Biology. Harlow: Longman, 1975.

MLA (9th ed.) Citation

Ewer, D. W., et al. Ecological Biology. Longman, 1975.