Insects :  instructions for collectors no. 4a. 

 - 5th rev. ed. 
 - London :  Trustees of the British Musuem (Natural History),  1974. 
 - vi, 169 p. :  ill., maps. 
 - British Museum (Natural History) .
<br/><br/><label>ISBN: </label>0565057057 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects--Collection and preservation.<br/>Biological specimens--Collection and preservations.