APA
WHO, . (1991). THE INTERNATIONAL PHARMACOPOEIA:GENERAL METHODS OF ANALYSIS (VOL-I). NEW DELHI: CBS.
Chicago
WHO, . 1991. THE INTERNATIONAL PHARMACOPOEIA:GENERAL METHODS OF ANALYSIS (VOL-I). NEW DELHI: CBS.
Harvard
WHO, . (1991). THE INTERNATIONAL PHARMACOPOEIA:GENERAL METHODS OF ANALYSIS (VOL-I). NEW DELHI: CBS.
MLA
WHO, . THE INTERNATIONAL PHARMACOPOEIA:GENERAL METHODS OF ANALYSIS (VOL-I). NEW DELHI: CBS. 1991.