Machlis, G. E. (1985). The state of the worlds parks (1a. edición.). [S.l.]: Westview Press.
Chicago Style CitationMachlis, Gary E. The State of the Worlds Parks. 1a. edición. [S.l.]: Westview Press, 1985.
MLA CitationMachlis, Gary E. The State of the Worlds Parks. 1a. edición. [S.l.]: Westview Press, 1985.
Warning: These citations may not always be 100% accurate.