Ark II; social response to environmental imperatives 
[by] Dennis C. Pirages [and] Paul R. Ehrlich.  
 - San Francisco,  W.H. Freeman  [1973, c1974]  
 - x, 344 p  23 cm. 
<br/><br/>Bibliography: p. [289]-297.  
<br/><br/><label>ISBN: </label>0716708477 9780716708476 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy--United States.<br/>Environnement--Politique gouvernementale.<br/>Environnement--Politique gouvernementale--âEtats-Unis.<br/>Milieubeleid.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Economic conditions--1971-1981.<br/>United States--Politics and government--1969-1974.<br/>United States--Social conditions--1960-1980.<br/>âEtats-Unis--Conditions âeconomiques--1961-<br/>âEtats-Unis--Conditions sociales--1960-<br/>âEtats-Unis--Politique et gouvernement--1969-1974.
<br/><br/><label>Subjects--Index Terms: </label>Environmental policy  United States United States  Economic conditions  1971-1981 United States  Politics and government  1969-1974 United States  Social conditions  1960-1980 
<br/><br/><label>LC Class. No.: </label>HN59  / .P47 1973