Cita APA (7th ed.)

Naunton, J., & Tulip, M. (2004). ProFile 1 student's book: Pre-intermediate. Oxford University Press.

Cita Chicago (17th ed.)

Naunton, Jon, i Mark Tulip. ProFile 1 Student's Book: Pre-intermediate. Oxford: Oxford University Press, 2004.

Cita MLA (8th ed.)

Naunton, Jon, i Mark Tulip. ProFile 1 Student's Book: Pre-intermediate. Oxford University Press, 2004.