Cita APA (7th ed.)

Couger, J. D., & Shannon, L. E. (1972). FORTRAN IV: A programmed instruction approach (2a. ed.). Richard D. Irwin.

Cita Chicago (17th ed.)

Couger, J. Daniel, i Loren E. Shannon. FORTRAN IV: A Programmed Instruction Approach. 2a. ed. Homewood: Richard D. Irwin, 1972.

Cita MLA (9th ed.)

Couger, J. Daniel, i Loren E. Shannon. FORTRAN IV: A Programmed Instruction Approach. 2a. ed. Richard D. Irwin, 1972.