The Green Bay watershed :
past/present/future /
Gerard Bertrand, Jean Lang and John Ross.
APA Citation
Bertrand, G., Ross, J., Lang, J. (1976). The Green Bay watershed: past/present/future. Madison: University of Wisconsin.
MLA Citation
Bertrand, Gerard, John Ross, and Jean Lang. The Green Bay Watershed: Past/present/future. Madison: University of Wisconsin, 1976.
Warning: These citations may not always be complete (especially for serials).