United Nations Population Fund & Marshall, A. (1998). The state of world population 1998: The new generations. UNFPA.
Lua i Stíl Chicago (17ú heag.)United Nations Population Fund agus Alex Marshall. The State of World Population 1998: The New Generations. New York: UNFPA, 1998.
Lua MLA (8ú heag.)United Nations Population Fund agus Alex Marshall. The State of World Population 1998: The New Generations. UNFPA, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.