APA
Grant W. E., Pedersen E. K. & Marin S. L. (1997). Ecology and natural resource management: Systems analysis an. Chichester: John Wiley.
Chicago
Grant William E, Pedersen Ellen K and Marin Sandra L. 1997. Ecology and natural resource management: Systems analysis an. Chichester: John Wiley.
Harvard
Grant W. E., Pedersen E. K. and Marin S. L. (1997). Ecology and natural resource management: Systems analysis an. Chichester: John Wiley.
MLA
Grant William E, Pedersen Ellen K and Marin Sandra L. Ecology and natural resource management: Systems analysis an. Chichester: John Wiley. 1997.