Environment U.S.A :  a guide to agencies, people, and resources / 
compiled and edited by the Onyx Group, Inc.; Glenn L. Paulson, advisory editor 
 - New York :  R.R. Bowker,  1974 
 - xii, 451 p. ;  27 cm. 
<br/><br/>Bibliography: p. 340-405 
<br/><br/><label>ISBN: </label>0835206718 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection--United States--Directories<br/>Conservation of natural resources--United States--Directories