Παραπομπή APA

Bettinger, P., & Wing, M. G. (2004). Geographic information systems: Applications in forestry and natural resources management. McGraw Hill.

Παραπομπή Chicago Style

Bettinger, Pete, και Michael G. Wing. Geographic Information Systems: Applications in Forestry and Natural Resources Management. New York: McGraw Hill, 2004.

Παραπομπή MLA

Bettinger, Pete, και Michael G. Wing. Geographic Information Systems: Applications in Forestry and Natural Resources Management. McGraw Hill, 2004.