Potts, M., Janowitz, B., & Fortney, J. A. (1983). Childbirth in developing countries. MTP Press.
Chicago Style (17th ed.) ZitazioaPotts, Malcolm, B. Janowitz, eta J. A. Fortney. Childbirth in Developing Countries. Boston: MTP Press, 1983.
MLA (9th ed.) ZitazioaPotts, Malcolm, et al. Childbirth in Developing Countries. MTP Press, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.