APA (7th ed.) Citation

Richardson, M. J., & Watling, R. (1969). Keys to fungi on dung. Plumridge.

Chicago Style (17th ed.) Citation

Richardson, M. J., and R. Watling. Keys to Fungi on Dung. Linton: Plumridge, 1969.

MLA (9th ed.) Citation

Richardson, M. J., and R. Watling. Keys to Fungi on Dung. Plumridge, 1969.