Economic and demographic projections /
[Thomas W. Langford].
APA Citation
Langford, T. W., Illinois. Environmental Protection Agency. 208 Water Quality Management Planning Program. (1977). Economic and demographic projections. [Springfield]: Illinois Environmental Protection Agency, Section 208, Water Quality Management Planning.
MLA Citation
Langford, Thomas W, and Illinois. Environmental Protection Agency. 208 Water Quality Management Planning Program. Economic And Demographic Projections. [Springfield]: Illinois Environmental Protection Agency, Section 208, Water Quality Management Planning, 1977.
Warning: These citations may not always be complete (especially for serials).