Environmental concern of Pennsylvania citizens :
data from a statewide survey /
David Scott and Fern K. Willits.

APA Citation

Scott, D., Willits, F. K., Pennsylvania State University. College of Agriculture. (1991). Environmental concern of Pennsylvania citizens: data from a statewide survey. University Park, PA: Penn State College of Agriculture.

MLA Citation

Scott, David, Fern K Willits, and Pennsylvania State University. College of Agriculture. Environmental Concern of Pennsylvania Citizens: Data From a Statewide Survey. University Park, PA: Penn State College of Agriculture, 1991.