Cita APA (7a ed.)

Feingold, C. (1973). Fundamentals of COBOL programming (2nd ed.). Brown.

Cita Chicago Style (17a ed.)

Feingold, Carl. Fundamentals of COBOL Programming. 2nd ed. Dubuque, Iowa: Brown, 1973.

Cita MLA (9a ed.)

Feingold, Carl. Fundamentals of COBOL Programming. 2nd ed. Brown, 1973.