World Health Organization. (1998). Health workers manual on family planning options (Second.). World Health Organization.
Цитирование в стиле Чикаго (17-е изд.)World Health Organization. Health Workers Manual on Family Planning Options. Second. Geneva: World Health Organization, 1998.
Цитирование MLA (8-е изд.)World Health Organization. Health Workers Manual on Family Planning Options. Second. World Health Organization, 1998.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.