Colbert, J. C. 1899- Controlled action drug forms / J. C. Colbert - Park Ridge, N.J : Noyes Data Corp, 1974 - xii, 339 p. : ill. ; 24 cm. - Chemical technology review no. 24 . ISBN: 0815505205 LCCN: 73-84538 Subjects--Topical Terms: Patent medicinesDrugs--Testing