Proceedings of the Royal Society of London, series B. 

 - London :    Harrison and Sons,    1905- 
 - v. :    ill. ;    26 cm. 
 - Three times a year    1970-1993 
 - Annually    1905-1960 
<br/><br/><label>Dewey Class. No.: </label>PER 506.242 R66 P 2 B