Faegri, Knut <br/><br/>
The principles of pollination ecology / 
by K. Faegri and L. van der Pijl 
 - 3rd revised ed 
 - Oxford :  Pergamon Press,  1979 
 - xi , 244 p. :  ill. ;  26 cm. 
 - Pergamon international library of science, technology, engineering, and social studies .
<br/><br/> 3rd. rev. ed. reprinted with revisions, 1980 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0080213383 (hardcover) 0080231608 (flexicover) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilization of plants<br/>Botany--Ecology