Institute of Autuaries year book . 

 - Britain  Institute Of Actuaries at the Alden Press      1978 
 - xvi , 277p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X81n . 3  . N81 <-- N80, M1