Pernoll, M. L., & Benson, R. C. (1987). Current obstetric y ginecologic diagnosis y treatment 1987. Appleton y lange.
Chicago-čujuhus (17. p.)Pernoll, Martin L., juo Ralph C. Benson. Current Obstetric Y Ginecologic Diagnosis Y Treatment 1987. California: Appleton y lange, 1987.
MLA-čujuhus (9. p.)Pernoll, Martin L., juo Ralph C. Benson. Current Obstetric Y Ginecologic Diagnosis Y Treatment 1987. Appleton y lange, 1987.
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