Wren, P. (1964). High school english grammar & composition (60th.). K & J Cooper.
Citazione stile Chigago Style (17a edizione)Wren, P. High School English Grammar & Composition. 60th. Bombay: K & J Cooper, 1964.
Citatione MLA (9a ed.)Wren, P. High School English Grammar & Composition. 60th. K & J Cooper, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.