Campbell, O. .. e. a., Cleland, J., Collumbien, M., & Southwick, K. (1999). Social science methods for research on reproductive health: HRP (ed.). WHO.
Čikaški stil citiranja (17. izdanje)Campbell, Oona ... et al, John Cleland, Martine Collumbien, i Karen Southwick. Social Science Methods for Research on Reproductive Health: HRP. ed. Distr: General: WHO, 1999.
MLA način citiranja (9. izdanje)Campbell, Oona ... et al, et al. Social Science Methods for Research on Reproductive Health: HRP. ed. WHO, 1999.
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