Cita APA (7a ed.)

Hill, L. (1968). Intermediate refresher course. Oxford University Pr.

Cita Chicago Style (17a ed.)

Hill, L.A. Intermediate Refresher Course. London: Oxford University Pr, 1968.

Cita MLA (9a ed.)

Hill, L.A. Intermediate Refresher Course. Oxford University Pr, 1968.