APA (7th ed.) Zitazioa

McCalla, R. (1985). Structured Cobol programming and data -: Processing methods. Brooks/Cole.

Chicago Style (17th ed.) Zitazioa

McCalla, Richard. Structured Cobol Programming and Data -: Processing Methods. Monterey, Calif.: Brooks/Cole, 1985.

MLA (9th ed.) Zitazioa

McCalla, Richard. Structured Cobol Programming and Data -: Processing Methods. Brooks/Cole, 1985.