Wren, P. (1964). High school english grammar & composition (60th.). K & J Cooper.
Cita Chicago (17th ed.)Wren, P. High School English Grammar & Composition. 60th. Bombay: K & J Cooper, 1964.
Cita MLA (9th ed.)Wren, P. High School English Grammar & Composition. 60th. K & J Cooper, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.