Cita APA (7th ed.)

Laird, C. (1961). English as a language: Backgrounds, development, usage. Hartcourt, Brace and World.

Cita Chicago (17th ed.)

Laird, Charlton. English as a Language: Backgrounds, Development, Usage. New York, Estados Unidos: Hartcourt, Brace and World, 1961.

Cita MLA (9th ed.)

Laird, Charlton. English as a Language: Backgrounds, Development, Usage. Hartcourt, Brace and World, 1961.