Cita APA (7a ed.)

Brophy, P. (1976). COBOL programming: An introduction for librarians. Clive Bingley.

Cita Chicago Style (17a ed.)

Brophy, Peter. COBOL Programming: An Introduction for Librarians. London: Clive Bingley, 1976.

Cita MLA (9a ed.)

Brophy, Peter. COBOL Programming: An Introduction for Librarians. Clive Bingley, 1976.