Lua APA (7ú heag.)

International Geographical Congress New Delhi, India. (1968). Congress & ICA programme.

Lua i Stíl Chicago (17ú heag.)

International Geographical Congress New Delhi, India. Congress & ICA Programme. New Delhi, 1968.

Lua MLA (8ú heag.)

International Geographical Congress New Delhi, India. Congress & ICA Programme. 1968.

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