Cita APA (7a ed.)

Lock, J. B. (1982). Arithmetic for Schools. Macmillan and co..

Cita Chicago Style (17a ed.)

Lock, J. B. Arithmetic for Schools. London: Macmillan and co., 1982.

Cita MLA (9a ed.)

Lock, J. B. Arithmetic for Schools. Macmillan and co., 1982.