Cita APA (7th ed.)

Spencer, D. D. (1985). Learning BASIC for microcomputers: A worktext for Apple, II, Iic and Iie. Charles E. Merrill Publishing.

Cita Chicago (17th ed.)

Spencer, Donald D. Learning BASIC for Microcomputers: A Worktext for Apple, II, Iic and Iie. Columbus: Charles E. Merrill Publishing, 1985.

Cita MLA (9th ed.)

Spencer, Donald D. Learning BASIC for Microcomputers: A Worktext for Apple, II, Iic and Iie. Charles E. Merrill Publishing, 1985.