APA (7th ed.) Citation

(1975). World Fertility Survey: Core questionnaires. [χ.ό.].

Chicago Style (17th ed.) Citation

World Fertility Survey: Core Questionnaires. The Hague: [χ.ό.], 1975.

MLA (8th ed.) Citation

World Fertility Survey: Core Questionnaires. [χ.ό.], 1975.

Warning: These citations may not always be 100% accurate.