Bennett, Donald Peter. <br/><br/>
Introduction to field biology / 
Donald P. Bennett and David A. Humphries. 
 - 2nd ed. 
 - London :  Edward Arnold,  c1974. 
 - vi, 256 p. :  ill. 
<br/><br/><label>ISBN: </label>071312458X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Field work.