Cita APA (7th ed.)

Lewis, W. E. (1980). Problem-solving principles for programmers: Applied logic, psychology, and grit. Hayden.

Cita Chicago (17th ed.)

Lewis, William E. Problem-solving Principles for Programmers: Applied Logic, Psychology, and Grit. Rochelle Park, NJ: Hayden, 1980.

Cita MLA (9th ed.)

Lewis, William E. Problem-solving Principles for Programmers: Applied Logic, Psychology, and Grit. Hayden, 1980.