Cowen, R., & McLean, M. (1984). International handbook of education systems. Wiley.
Lua i Stíl Chicago (17ú heag.)Cowen, Robert, agus Martin McLean. International Handbook of Education Systems. Chichester: Wiley, 1984.
Lua MLA (9ú heag.)Cowen, Robert, agus Martin McLean. International Handbook of Education Systems. Wiley, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.