Muesebeck, Carl Frederick William,  1894- <br/><br/>
Hymenoptera of America north of Mexico :  synoptic catalog / 
prepared cooperatively by specialists on the various groups of hymenoptera under the direction of C.F.W. Muesebeck, Karl V. Krombein and Henry K. Townes. 
 - Washington :  United States Government Printing Office,  1951. 
 - 1420 p. :  fold. map. ;  24 cm. 
 - United States. Dept. of Agriculture. Agriculture monograph ;  no. 2. .
<br/><br/> Supplement, no.-    issued Sept. 1958-- 
<br/><br/><label>LCCN: </label>agr51000324  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hymenoptera--North America.
<br/><br/><label>LC Class. No.: </label>HD1751  / .A918 no. 2 
<br/><br/><label>Dewey Class. No.: </label>595.79 
<br/><br/><label>National Agricultural Library Call No.: </label>1Ag84  / AM no. 2