Cita APA (7a ed.)

Bowman, M. (1988). COMAL programming guide. Heinemann Educational Book.

Cita Chicago Style (17a ed.)

Bowman, Marcus. COMAL Programming Guide. London: Heinemann Educational Book, 1988.

Cita MLA (9a ed.)

Bowman, Marcus. COMAL Programming Guide. Heinemann Educational Book, 1988.