Cita APA (7a ed.)

World Fertility Survey & International Statistical Institute. (1973). Occasional papers. International Statistical Institute.

Cita Chicago Style (17a ed.)

World Fertility Survey y International Statistical Institute. Occasional Papers. Voorburg: International Statistical Institute, 1973.

Cita MLA (8a ed.)

World Fertility Survey y International Statistical Institute. Occasional Papers. International Statistical Institute, 1973.