APA (7th ed.) Citation

Hale, W. G., Margham, J. P., & Saunders, V. A. (1995). Collins dictionary of biology (2nd ed.). HarperCollins.

Chicago Style (17th ed.) Citation

Hale, W. G., J. P. Margham, and Venetia A. Saunders. Collins Dictionary of Biology. 2nd ed. Glasgow: HarperCollins, 1995.

MLA (9th ed.) Citation

Hale, W. G., et al. Collins Dictionary of Biology. 2nd ed. HarperCollins, 1995.