Cita APA (7th ed.)

(1977). Programmed learning aid for COBOL: A first course / Richard W. Lott; coordinating editor, Roger H. Hermanson.

Cita Chicago (17th ed.)

Programmed Learning Aid for COBOL: A First Course / Richard W. Lott; Coordinating Editor, Roger H. Hermanson. 1977.

Cita MLA (9th ed.)

Programmed Learning Aid for COBOL: A First Course / Richard W. Lott; Coordinating Editor, Roger H. Hermanson. 1977.