Lewis, Trevor <br/><br/>
Introduction to experimental ecology 
by T. Lewis and L. R. Taylor 
 - London :  Academic Press,  1967 
 - 401 p. :  ill. ;  23 cm. 
<br/><br/> Includes indexes 
<br/><br/>p. 376-380 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Study and teaching<br/>Ecology--Experiments