Citace podle APA (7th ed.)

Lauersen, N. (1979). Investigation of prostaglandins for abortion. [Published by the Nordic Association for Obstetrics and Gynecology].

Citace podle Chicago (17th ed.)

Lauersen, Niels. Investigation of Prostaglandins for Abortion. New York: [Published by the Nordic Association for Obstetrics and Gynecology], 1979.

Citace podle MLA (8th ed.)

Lauersen, Niels. Investigation of Prostaglandins for Abortion. [Published by the Nordic Association for Obstetrics and Gynecology], 1979.

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