Cita APA (7a ed.)

McCalla, R. (1985). Structured COBOL programming and data-processing methods. Brooks/Cole Pub Co.

Cita Chicago Style (17a ed.)

McCalla, Richard. Structured COBOL Programming and Data-processing Methods. Monterey, Calif: Brooks/Cole Pub Co, 1985.

Cita MLA (9a ed.)

McCalla, Richard. Structured COBOL Programming and Data-processing Methods. Brooks/Cole Pub Co, 1985.