Baumslag, B. (1968). Schaum's outline of theory and problems of group theory. McGraw-Hill Book Co., Inc.
Lua i Stíl Chicago (17ú heag.)Baumslag, Benjamin. Schaum's Outline of Theory and Problems of Group Theory. New York: McGraw-Hill Book Co., Inc, 1968.
Lua MLA (9ú heag.)Baumslag, Benjamin. Schaum's Outline of Theory and Problems of Group Theory. McGraw-Hill Book Co., Inc, 1968.
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