Air quality considerations in transportation and urban planning:
a five-year program guide,
by...and Ryckman, Edgerley, Tomlinson & Associates, prepared for U.S. Environmental Protection Agency.

APA Citation

Alan M. Voorhees & Associates. (1971). Air quality considerations in transportation and urban planning: a five-year program guide. .

MLA Citation

Alan M. Voorhees & Associates. Air Quality Considerations In Transportation And Urban Planning: a Five-year Program Guide. , 1971.

Warning: These citations may not always be complete (especially for serials).