Encyclopaedia Britannica Educational Corporation, & Encyclopaedia Britannica Educational Corporation. (1990). The Universe: Beyond the solar system. Chicago, III.: Encyclopaedia Britannica Educational Corp.
Chicago Style CitationEncyclopaedia Britannica Educational Corporation, and Encyclopaedia Britannica Educational Corporation. The Universe: Beyond the Solar System. Chicago, III.: Encyclopaedia Britannica Educational Corp, 1990.
MLA CitationEncyclopaedia Britannica Educational Corporation, and Encyclopaedia Britannica Educational Corporation. The Universe: Beyond the Solar System. Chicago, III.: Encyclopaedia Britannica Educational Corp, 1990.
Warning: These citations may not always be 100% accurate.