Cita APA (7th ed.)

Jowitt, D., & Nnamonu, S. (1985). Common errors in English. Longman.

Cita Chicago (17th ed.)

Jowitt, David, i Silas Nnamonu. Common Errors in English. Essex, Eng: Longman, 1985.

Cita MLA (9th ed.)

Jowitt, David, i Silas Nnamonu. Common Errors in English. Longman, 1985.