APA
WHO, . (1993). ESTIMATING DRUG REQUIREMENTS: A PRACTICAL MANUAL. DELHI: CBS PUBLISHERS AND DISTRIBUTERS.
Chicago
WHO, . 1993. ESTIMATING DRUG REQUIREMENTS: A PRACTICAL MANUAL. DELHI: CBS PUBLISHERS AND DISTRIBUTERS.
Harvard
WHO, . (1993). ESTIMATING DRUG REQUIREMENTS: A PRACTICAL MANUAL. DELHI: CBS PUBLISHERS AND DISTRIBUTERS.
MLA
WHO, . ESTIMATING DRUG REQUIREMENTS: A PRACTICAL MANUAL. DELHI: CBS PUBLISHERS AND DISTRIBUTERS. 1993.