APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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