Pemberton, J. E. (1969). How to find out in mathematics; a guide to sources of information (2a. ed. rev.). Pergamon press.
Cita Chicago Style (17a ed.)Pemberton, John E. How to Find Out in Mathematics; a Guide to Sources of Information. 2a. ed. rev. Oxford: Pergamon press, 1969.
Cita MLA (9a ed.)Pemberton, John E. How to Find Out in Mathematics; a Guide to Sources of Information. 2a. ed. rev. Pergamon press, 1969.
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