Cita APA (7th ed.)

Wellington, P. (1995). Shaping up your English. Allyn & Bacon.

Cita Chicago (17th ed.)

Wellington, Pat. Shaping Up Your English. Boston: Allyn & Bacon, 1995.

Cita MLA (9th ed.)

Wellington, Pat. Shaping Up Your English. Allyn & Bacon, 1995.