Ledgard, H. F., Nagin, P. A., & Hueras, J. F. (1979). PASCAL with style: Programming proverbs. Hayden Book Co..
Lua i Stíl Chicago (17ú heag.)Ledgard, Henry F., Paul A. Nagin, agus John F. Hueras. PASCAL with Style: Programming Proverbs. Rochelle Park, N.J.: Hayden Book Co., 1979.
Lua MLA (8ú heag.)Ledgard, Henry F., et al. PASCAL with Style: Programming Proverbs. Hayden Book Co., 1979.
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