Παραπομπή APA

Darling, F. F., & Milton, J. P. (1966). Future environments of North America. Garden City, N.Y: Natural History Press.

Παραπομπή Chicago Style

Darling, F. Fraser, and John P. Milton. Future Environments of North America. Garden City, N.Y: Natural History Press, 1966.

Παραπομπή MLA

Darling, F. Fraser, and John P. Milton. Future Environments of North America. Garden City, N.Y: Natural History Press, 1966.

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