APA (7th ed.) Citation

Wirl, F. (1997). The economics of conservation programs. Nijhoff.

Chicago Style (17th ed.) Citation

Wirl, Franz. The Economics of Conservation Programs. Boston ; Dordrecht ; London: Nijhoff, 1997.

MLA (9th ed.) Citation

Wirl, Franz. The Economics of Conservation Programs. Nijhoff, 1997.

Warning: These citations may not always be 100% accurate.