Perry, Donald R. <br/><br/>
Access methods, observations, pollination biology, bee foraging behavior, and bee community structure within a neotropical wet forest canopy / 
by Donald Ray Perry. 
 - Ann Arbor, Mich. :  University Microfilms International,  1983. 
 - 108 p. :  ill. ;  22 cm. 
<br/><br/>Thesis (Ph. D.) - University of California, Los Angeles, 1983. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollination by insects.<br/>Bees--Behavior.