Pemberton, J. E. (1969). How to find out in mathematics: :a guide to sources of information. Pergamon press.
Παραπομπή Chicago StylePemberton, John E. How to Find Out in Mathematics: :a Guide to Sources of Information. Oxford: Pergamon press, 1969.
Παραπομπή MLAPemberton, John E. How to Find Out in Mathematics: :a Guide to Sources of Information. Pergamon press, 1969.
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