Handbook to the Conservation Section of the International Biological Programme / 
compiled by E. M. Nicholson. 
 - London :  Conservation of Terrestrial Biological Communities,  1968 
 - ix, 84 p. ;  21 cm. 
 - IBP handbook ; 5 .
<br/><br/>Bibliography: p. 53 
<br/><br/><label>Subjects--Corporate Names: </label><br/>International Biological Programme.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation--Research.