Cita APA (7th ed.)

Fisher, M. (1982). Computer programming in COBOL. Hodder and Stoughton.

Cita Chicago (17th ed.)

Fisher, Melinda. Computer Programming in COBOL. Sevenoaks: Hodder and Stoughton, 1982.

Cita MLA (8th ed.)

Fisher, Melinda. Computer Programming in COBOL. Hodder and Stoughton, 1982.