Cita APA

Duncan, W. G. (1973). The nature and content of fertility surveys conducted throughout the world since 1960. [Voorburg, The Netherlands]: [International Statistical Institute].

Citación estilo Chicago

Duncan, William G. The Nature and Content of Fertility Surveys Conducted Throughout the World Since 1960. [Voorburg, The Netherlands]: [International Statistical Institute], 1973.

Cita MLA

Duncan, William G. The Nature and Content of Fertility Surveys Conducted Throughout the World Since 1960. [Voorburg, The Netherlands]: [International Statistical Institute], 1973.