APA (7th ed.) Citation

Gilbert, O. L. (1991). The ecology of urban habitats. Chapman and Hall.

Chicago Style (17th ed.) Citation

Gilbert, O. L. The Ecology of Urban Habitats. London ; New York: Chapman and Hall, 1991.

MLA (9th ed.) Citation

Gilbert, O. L. The Ecology of Urban Habitats. Chapman and Hall, 1991.