Não informado. (1968). Singapore journal of obstetrics and gynaecology. Obstetrical and Gynaecological Society of Singapore.
Citace podle Chicago (17th ed.)Não informado. Singapore Journal of Obstetrics and Gynaecology. Singapore: Obstetrical and Gynaecological Society of Singapore, 1968.
Citace podle MLA (8th ed.)Não informado. Singapore Journal of Obstetrics and Gynaecology. Obstetrical and Gynaecological Society of Singapore, 1968.
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