Lua APA (7ú heag.)

EUROPA PUBLICATIONS LIMITDE. (1976). The world of learning 1976- 77 (ed.27.). Europa Publications limited.

Lua i Stíl Chicago (17ú heag.)

EUROPA PUBLICATIONS LIMITDE. The World of Learning 1976- 77. ed.27. London: Europa Publications limited, 1976.

Lua MLA (9ú heag.)

EUROPA PUBLICATIONS LIMITDE. The World of Learning 1976- 77. ed.27. Europa Publications limited, 1976.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.