Ridpath,ian. (1976). Theillustrated encyclopedia of astronomy. Macmillion.
Chicago Edition CitationRidpath,ian. Theillustrated Encyclopedia of Astronomy. Newyork: Macmillion, 1976.
MLA Edition CitationRidpath,ian. Theillustrated Encyclopedia of Astronomy. Macmillion, 1976.
Warning: These citations may not always be 100% accurate.