Cita APA (7a ed.)

Mellgren, L., & Walker, M. (1980). A young english series yes! Addison-Wesley Publishing Company.

Cita Chicago Style (17a ed.)

Mellgren, Lars, y Michael Walker. A Young English Series Yes! London: Addison-Wesley Publishing Company, 1980.

Cita MLA (8a ed.)

Mellgren, Lars, y Michael Walker. A Young English Series Yes! Addison-Wesley Publishing Company, 1980.