Proctor, R. A. (1878). Other worlds than ours: The plurality of worlds studied under the light of recent scientific researches (4th ed.). Longmans, Green, and Co..
MLA CitationProctor, Richard A. Other Worlds than Ours: The Plurality of Worlds Studied Under the Light of Recent Scientific Researches. 4th ed. Longmans, Green, and Co., 1878.
Warning: These citations have been automatically generated and may not always be 100% accurate..