Cita APA (7th ed.)

Bird, R. J. (1988). An Introduction to functional programming. Prentice-Hall.

Cita Chicago (17th ed.)

Bird, R. J. An Introduction to Functional Programming. Englewood Cliffs, N.J: Prentice-Hall, 1988.

Cita MLA (9th ed.)

Bird, R. J. An Introduction to Functional Programming. Prentice-Hall, 1988.