TY - GEN ED - World Health Organization. Division of Drug Management and Policies. Quality Assurance Unit. TI - Reference substances and infrared reference spectra for pharmacopoeial analysis PY - 1995/// CY - Geneva : PB - World Health Organization KW - Drug evaluation KW - Methods KW - Spectrophotometry, Infrared KW - Reference standards KW - Pharmacopoeias KW - Standards ER -