Cita APA (7th ed.)

Kelly, R. (1959). English exercises for secretaries. G.G.Harrap & Co.

Cita Chicago (17th ed.)

Kelly, R. English Exercises for Secretaries. London: G.G.Harrap & Co, 1959.

Cita MLA (9th ed.)

Kelly, R. English Exercises for Secretaries. G.G.Harrap & Co, 1959.