Cita APA (7th ed.)

Ledgard, H. F., Hueras, J. F., & Nagin, P. A. (1979). PASCAL with style: Programming proverbs. Hayden Book Co.

Cita Chicago (17th ed.)

Ledgard, Henry F., John F. Hueras, i Paul A. Nagin. PASCAL with Style: Programming Proverbs. Rochelle Park, N.J: Hayden Book Co, 1979.

Cita MLA (9th ed.)

Ledgard, Henry F., et al. PASCAL with Style: Programming Proverbs. Hayden Book Co, 1979.