Cita APA (7a ed.)

Barnfield, F. A., & Bosch, H. I. S. (1988). No problem. Pupil's book A. Macmillan Publishers.

Cita Chicago Style (17a ed.)

Barnfield, Fred Autor, y Henk Ilustrador Saunders Bosch. No Problem. Pupil's Book A. Hong Kong,China: Macmillan Publishers, 1988.

Cita MLA (9a ed.)

Barnfield, Fred Autor, y Henk Ilustrador Saunders Bosch. No Problem. Pupil's Book A. Macmillan Publishers, 1988.