World Health Organization & World Health Organization. (1978). Induced abortion: Report of a WHO Scientific Group. World Health Organization.
Citace podle Chicago (17th ed.)World Health Organization a World Health Organization. Induced Abortion: Report of a WHO Scientific Group. Geneva: World Health Organization, 1978.
Citace podle MLA (9th ed.)World Health Organization a World Health Organization. Induced Abortion: Report of a WHO Scientific Group. World Health Organization, 1978.
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