United Nations. Department of Economic and Social Affairs. <br/><br/>
Manuals on methods of estimating population 

 - New York   The Author  1956 
 - manuals  ; 28cm.- 
 - Population studies,no.25,54,55 .
<br/><br/> Manual no.3: Methods for population projections by sex and age.1956 Study ;no3                                                            Manual no.7: Method of projecting Households and families.1973;study no.54   Manual no.8: Methods for projentions of Urban and rural population.1974 Study no.55                                                                                                                                                 Manual no.5: Methods of projecting the economically active population 
<br/><br/><label>Dewey Class. No.: </label>DB301.32  / UNI