APA-viite

Drife, J. O. (2001). The third generation pill controversy (“continued”): The risks are still small compared with those of pregnancy. BMJ.

Chicago-tyylinen lähdeviittaus

Drife, J O. The Third Generation Pill Controversy (“continued”): The Risks Are Still Small Compared With Those of Pregnancy. BMJ, 2001.

MLA-viite

Drife, J O. The Third Generation Pill Controversy (“continued”): The Risks Are Still Small Compared With Those of Pregnancy. BMJ, 2001.

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