Dalton, K., & Holton, W. (1999). Once a month: Understanding and treating PMS (New fully rev. 6th ed.). Hunter House.
Chicago-viite (17. p.)Dalton, Katharina, ja Wendy Holton. Once a Month: Understanding and Treating PMS. New fully rev. 6th ed. Alameda, CA: Hunter House, 1999.
MLA-viite (9. p.)Dalton, Katharina, ja Wendy Holton. Once a Month: Understanding and Treating PMS. New fully rev. 6th ed. Hunter House, 1999.
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