MacBean, J. C. (1973). Astronomy: Examining your environment. Holt, Rinehart and Winston of Canada.
Lua i Stíl Chicago (17ú heag.)MacBean, John C. Astronomy: Examining Your Environment. Toronto: Holt, Rinehart and Winston of Canada, 1973.
Lua MLA (8ú heag.)MacBean, John C. Astronomy: Examining Your Environment. Holt, Rinehart and Winston of Canada, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.