APA (7th ed.) Citation

Usher, M. B. (1973). Biological management and conservation: Ecological theory, application and planning (1. publ.). Chapman and Hall.

Chicago Style (17th ed.) Citation

Usher, Michael B. Biological Management and Conservation: Ecological Theory, Application and Planning. 1. publ. London: Chapman and Hall, 1973.

MLA (9th ed.) Citation

Usher, Michael B. Biological Management and Conservation: Ecological Theory, Application and Planning. 1. publ. Chapman and Hall, 1973.