World Health Organization. South - East Asia & World Health Organization. (1999). Essential drugs for primary health care: A manual for health workers in South-East Asia. World Health Organization.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումWorld Health Organization. South - East Asia and World Health Organization. Essential Drugs for Primary Health Care: A Manual for Health Workers in South-East Asia. Geneva: World Health Organization, 1999.
MLA (8րդ խմբ.) ՄեջբերումWorld Health Organization. South - East Asia and World Health Organization. Essential Drugs for Primary Health Care: A Manual for Health Workers in South-East Asia. World Health Organization, 1999.
Զգուշացում. այս մեջբերումները միշտ չէ, որ կարող են 100% ճշգրիտ լինել.