Harrison, P., & Rowley, J. (1984). Human numbers, human needs. International Planned Parenthood Federation.
Lua i Stíl Chicago (17ú heag.)Harrison, Paul, agus John Rowley. Human Numbers, Human Needs. London: International Planned Parenthood Federation, 1984.
Lua MLA (9ú heag.)Harrison, Paul, agus John Rowley. Human Numbers, Human Needs. International Planned Parenthood Federation, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.