Cita APA (7a ed.)

Sordillo, D. A. (1978). The programmer's ANSI COBOL reference manual. Prentice-Hall.

Cita Chicago Style (17a ed.)

Sordillo, Donald A. The Programmer's ANSI COBOL Reference Manual. Englewood Cliffs, N.J.: Prentice-Hall, 1978.

Cita MLA (9a ed.)

Sordillo, Donald A. The Programmer's ANSI COBOL Reference Manual. Prentice-Hall, 1978.