Παραπομπή APA

Dale,Virginia H, & English,Mary R. (1999). Tools to aid environmental decision making. Springer-verlag.

Παραπομπή Chicago Style

Dale,Virginia H, και English,Mary R. Tools to Aid Environmental Decision Making. New York: Springer-verlag, 1999.

Παραπομπή MLA

Dale,Virginia H, και English,Mary R. Tools to Aid Environmental Decision Making. Springer-verlag, 1999.