APA (7th ed.) Citation

Collins, G. E., & Lazarus, H. L. (1975). Drug information services handbook. Publishing Sciences Group.

Chicago Style (17th ed.) Citation

Collins, G. Edward, and Herman L. Lazarus. Drug Information Services Handbook. Acton, MA: Publishing Sciences Group, 1975.

MLA (9th ed.) Citation

Collins, G. Edward, and Herman L. Lazarus. Drug Information Services Handbook. Publishing Sciences Group, 1975.