APA引文
Källén, B. (2009). Drugs during pregnancy. Nova Biomedical Books.
芝加哥风格引文
Källén, Bengt. Drugs During Pregnancy. New York: Nova Biomedical Books, 2009.
MLA引文
Källén, Bengt. Drugs During Pregnancy. Nova Biomedical Books, 2009.
警告:这些引文格式不一定是100%准确.