Cita APA (7th ed.)

Greenwood, N. H., & Edwards, J. (1973). Human environments and natural systems: A conflict of dominion. Duxbury Press.

Cita Chicago (17th ed.)

Greenwood, Ned H., i J.M.B Edwards. Human Environments and Natural Systems: A Conflict of Dominion. North Scituate, Mass: Duxbury Press, 1973.

Cita MLA (9th ed.)

Greenwood, Ned H., i J.M.B Edwards. Human Environments and Natural Systems: A Conflict of Dominion. Duxbury Press, 1973.