Cita APA (7a ed.)

Laird, C. (1961). English as a language: Backgrounds, developments, usage. Harcourt, Brace & World.

Cita Chicago Style (17a ed.)

Laird, Charlton. English as a Language: Backgrounds, Developments, Usage. New York, Estados Unidos: Harcourt, Brace & World, 1961.

Cita MLA (9a ed.)

Laird, Charlton. English as a Language: Backgrounds, Developments, Usage. Harcourt, Brace & World, 1961.