World Bank. (2000). Procurement of health sector goods: Pharmaceuticals, vaccines, and condoms. World Bank.
Cytowanie według stylu Chicago (wyd. 17)World Bank. Procurement of Health Sector Goods: Pharmaceuticals, Vaccines, and Condoms. Washington, D.C.: World Bank, 2000.
Cytowanie według stylu MLA (wyd. 9)World Bank. Procurement of Health Sector Goods: Pharmaceuticals, Vaccines, and Condoms. World Bank, 2000.