APA (7th ed.) Zitazioa
Verma, V. (2008). Sampling for household-based surveys of child labour. International Labour Organization.
Chicago Style (17th ed.) Zitazioa
Verma, Vijay. Sampling for Household-based Surveys of Child Labour. Geneva: International Labour Organization, 2008.
MLA (9th ed.) Zitazioa
Verma, Vijay. Sampling for Household-based Surveys of Child Labour. International Labour Organization, 2008.
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