Bloch, E. D. (2011). Proofs and fundamentals: A first course in abstract mathematics (Second edition.). Springer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBloch, Ethan D. Proofs and Fundamentals: A First Course in Abstract Mathematics. Second edition. New York: Springer, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBloch, Ethan D. Proofs and Fundamentals: A First Course in Abstract Mathematics. Second edition. Springer, 2011.
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