Dasmann, R F <br/><br/>
Planet in peril?  man and the biosphere today 

 - New Delhi  Sterling publishers  1972 
 - 135 p.; 21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biosphere<br/>Environmental crisis<br/>Plant conservation<br/>Plants - effects of environment on<br/>Plants - effects of human on<br/>Plants - protection of