Benjamin, B. <br/><br/>
Elements of vital statistics / 
B. Benjamin 
 - London :  George Allen & Unwin,  1959 
 - 352 p. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vital statistics<br/>Mortality<br/>Fertility
<br/><br/><label>Dewey Class. No.: </label>312