APA
Gearien J. E. &. G. B. F., . (1969). Methods of drug analysis. Lea & Febiger, Philadelphia: .
Chicago
Gearien James E & Grabowski Bernard F, . 1969. Methods of drug analysis. Lea & Febiger, Philadelphia: .
Harvard
Gearien J. E. &. G. B. F., . (1969). Methods of drug analysis. Lea & Febiger, Philadelphia: .
MLA
Gearien James E & Grabowski Bernard F, . Methods of drug analysis. Lea & Febiger, Philadelphia: . 1969.