Cita APA (7th ed.)

MCCLAREN, A. W. e. a. (1987). Laidlaw english. Laidlaw Brothers.

Cita Chicago (17th ed.)

MCCLAREN, Adrian W. et all. Laidlaw English. Illinois: Laidlaw Brothers, 1987.

Cita MLA (9th ed.)

MCCLAREN, Adrian W. et all. Laidlaw English. Laidlaw Brothers, 1987.