Cita APA (7th ed.)

Brady, A. H., & Richardson, J. T. (1981). Programmed learning aid for Basic programming language (2a. ed.). Richard D. Irwin.

Cita Chicago (17th ed.)

Brady, Allen H., i James T. Richardson. Programmed Learning Aid for Basic Programming Language. 2a. ed. Homewood: Richard D. Irwin, 1981.

Cita MLA (9th ed.)

Brady, Allen H., i James T. Richardson. Programmed Learning Aid for Basic Programming Language. 2a. ed. Richard D. Irwin, 1981.