ebrary, Inc, Mastroianni, L., Donaldson, P. J., & Kane, T. T. (1990). Developing new contraceptives: Obstacles and opportunities. National Academy Press.
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Chicago-čujuhus (17. p.)
ebrary, Inc, Luigi Mastroianni, Peter J. Donaldson, juo Thomas T. Kane. Developing New Contraceptives: Obstacles and Opportunities. Washington, D.C.: National Academy Press, 1990.
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MLA-čujuhus (9. p.)
ebrary, Inc, et al. Developing New Contraceptives: Obstacles and Opportunities. National Academy Press, 1990.
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