Lua APA (7ú heag.)

Brophy, P. (1976). COBOL programming. Clive Bingley & Linnet Books.

Lua i Stíl Chicago (17ú heag.)

Brophy, Peter. COBOL Programming. London: Clive Bingley & Linnet Books, 1976.

Lua MLA (9ú heag.)

Brophy, Peter. COBOL Programming. Clive Bingley & Linnet Books, 1976.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.