Sachs, R. K. (1971). General relativity and cosmology ==: Relativita generale e cosmolgia. New York: Academic Press.
Chicago Style CitationSachs, R. K. General Relativity and Cosmology ==: Relativita Generale E Cosmolgia. New York: Academic Press, 1971.
MLA CitationSachs, R. K. General Relativity and Cosmology ==: Relativita Generale E Cosmolgia. New York: Academic Press, 1971.
Warning: These citations may not always be 100% accurate.