Foster, Phillips Wayne <br/><br/>
Introducción a la ciencia ambiental 
Phillips Wayne Foster ; traducción del Carmen Gil 
 - Buenos Aires  El Ateneo  1975 
 - 188 p. 
<br/><br/> Translation of : Programmed learning aid for introduction to environmental science 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental protection--Programmed instructor<br/>Pollution<br/>Ecology--Programmed instruction