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.
Atenció: Aquestes cites poden no estar 100% correctes.