Cita APA (7th ed.)

Higman, B. (1967). A comparative study of programming languages. Macdonald.

Cita Chicago (17th ed.)

Higman, Bryan. A Comparative Study of Programming Languages. London: Macdonald, 1967.

Cita MLA (8th ed.)

Higman, Bryan. A Comparative Study of Programming Languages. Macdonald, 1967.