AAG program abstracts, Salt Lake City, 1977 : : abstracts of papers presented at the 73rd Annual Meeting of the Association of American Geographers, Hotel Utah, Salt Lake City, Utah, April 24-27, 1977 / [electronic resource] / edited by A. David Hill and Theodore C. Myers.. — Washington, D.C. : : AAG,, c1977.. — 173 p. ; 23 cm.