Protecting visibility in national parks and wilderness areas  [electronic resource] / 
Committee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Commission on Geosciences, Environment, and Resources, National Research Council. 
 - Washington, D.C. :  National Academy Press,  1993. 
 - xv, 446 p. :  ill., maps. 
<br/><br/>Includes bibliographical references (p. 265-313). 
<br/><br/><br/>Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Haze--Environmental aspects--United States.<br/>Visibility--United States.<br/>Air quality management--United States.<br/>National parks and reserves--United States.<br/>Wilderness areas--United States.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>TD884.5  / .P76 1993 
<br/><br/><label>Dewey Class. No.: </label>363.73/92