Cita APA (7th ed.)

SWAN, M., & WALTER, C. The new cambridge english course 1 A. Cambridge University Press.

Cita Chicago (17th ed.)

SWAN, Michael, i Catherine WALTER. The New Cambridge English Course 1 A. New York: Cambridge University Press.

Cita MLA (9th ed.)

SWAN, Michael, i Catherine WALTER. The New Cambridge English Course 1 A. Cambridge University Press.