APA

Briggs G. G., Freeman R. K. & Yaffe S. J. (1994). Drugs in pregnancy and lactation / Gerald G. Briggs. Baltimore: Williams & Wilkins.

Chicago

Briggs Gerald G, Freeman Roger K and Yaffe Sumner J. 1994. Drugs in pregnancy and lactation / Gerald G. Briggs. Baltimore: Williams & Wilkins.

Harvard

Briggs G. G., Freeman R. K. and Yaffe S. J. (1994). Drugs in pregnancy and lactation / Gerald G. Briggs. Baltimore: Williams & Wilkins.

MLA

Briggs Gerald G, Freeman Roger K and Yaffe Sumner J. Drugs in pregnancy and lactation / Gerald G. Briggs. Baltimore: Williams & Wilkins. 1994.