APA-viite

Newcomer, L. R. (1987). Programming with advanced structured cobol. Mc Grahill.

Chicago-tyylinen lähdeviittaus

Newcomer, Lawrence R. Programming with Advanced Structured Cobol. Singapore: Mc Grahill, 1987.

MLA-viite

Newcomer, Lawrence R. Programming with Advanced Structured Cobol. Mc Grahill, 1987.