MacBean, J. C. (1973). Astronomy: Examining your environment. Holt, Rinehart and Winston of Canada.
Style de citation Chicago (17e éd.)MacBean, John C. Astronomy: Examining Your Environment. Toronto: Holt, Rinehart and Winston of Canada, 1973.
Style de citation MLA (8e éd.)MacBean, John C. Astronomy: Examining Your Environment. Holt, Rinehart and Winston of Canada, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.