APA

Briggs G., Freeman R. & Yaffe S. (2002). Drugs in pregnancy and lactation. Philadelphia: Lippincott Williams & Wilkins.

Chicago

Briggs Gerald, Freeman Roger and Yaffe Sumner. 2002. Drugs in pregnancy and lactation. Philadelphia: Lippincott Williams & Wilkins.

Harvard

Briggs G., Freeman R. and Yaffe S. (2002). Drugs in pregnancy and lactation. Philadelphia: Lippincott Williams & Wilkins.

MLA

Briggs Gerald, Freeman Roger and Yaffe Sumner. Drugs in pregnancy and lactation. Philadelphia: Lippincott Williams & Wilkins. 2002.