Cita APA (7a ed.)

Collinson, A. S. (1992). Grasslands. Dillon Press.

Cita Chicago Style (17a ed.)

Collinson, A. S. Grasslands. New York: Dillon Press, 1992.

Cita MLA (9a ed.)

Collinson, A. S. Grasslands. Dillon Press, 1992.