APA (7th ed.) Citation
Källén, B. (2009). Drugs during pregnancy. Nova Biomedical Books.
Chicago Style (17th ed.) Citation
Källén, Bengt. Drugs During Pregnancy. New York: Nova Biomedical Books, 2009.
MLA (9th ed.) Citation
Källén, Bengt. Drugs During Pregnancy. Nova Biomedical Books, 2009.
Warning: These citations may not always be 100% accurate.