Cita APA (7th ed.)

Judd, J. (1963). Exercises in english: For foreign students. Longman.

Cita Chicago (17th ed.)

Judd, J.O. Exercises in English: For Foreign Students. London: Longman, 1963.

Cita MLA (9th ed.)

Judd, J.O. Exercises in English: For Foreign Students. Longman, 1963.