Faegri, Knut. <br/><br/>
The principles of pollination ecology /  
by K. Faegri and L. van der Pijl. 
 - 3rd rev. ed. 
 - Oxford :   Pergamon Press,   1979. 
 - xi, 244 p. :   il. 
 - Pergamon international library Pergamo international library of science, technology, engineering, and social studies .
<br/><br/><label>ISBN: </label>0080231608 
<br/><br/><label>LCCN: </label>78040132  
<br/><br/><label>Nat. Bib. No.: </label>GB79 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecologia vegetal.<br/>Polinização.
<br/><br/><label>Dewey Class. No.: </label>581.1662