Fischbein, S., & Åkerman, B. A. (1990). Tvillingar - en riskgrupp. Research report series.
Chicago Style (17th ed.) CitationFischbein, Siv, and Britta A. Åkerman. "Tvillingar - En Riskgrupp." Research Report Series 1990.
MLA (9th ed.) CitationFischbein, Siv, and Britta A. Åkerman. "Tvillingar - En Riskgrupp." Research Report Series, 1990.
Warning: These citations may not always be 100% accurate.