McGregor, Samuel Emmett, 1906- <br/><br/>
Insect pollination of cultivated crop plants / 
by S. E. McGregor. 
 - Washington :  Agricultural Research Service, U.S. Dept. of Agriculture : for sale by the Supt. of Docs., U.S. Govt. Print. Off.,  1976. 
 - viii, 411 p. :  ill. ;  30 cm. 
 - Agriculture handbook ; no. 496 .
 - Agriculture handbook (United States. Dept. of Agriculture) ;  no. 496. .
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollination by insects.<br/>Plants, Cultivated.<br/>Bee culture.<br/>Honeybee.
<br/><br/><label>LC Class. No.: </label>S21  / .A37 no. 496 
<br/><br/><label>Dewey Class. No.: </label>630/.8 s  582/.01/66