Cita APA (7th ed.)

Creme, P., & Lea, M. R. (1997). Writing at university: A guide for students. Open University.

Cita Chicago (17th ed.)

Creme, Phyllis, i Mary R. Lea. Writing at University: A Guide for Students. Buckingham: Open University, 1997.

Cita MLA (9th ed.)

Creme, Phyllis, i Mary R. Lea. Writing at University: A Guide for Students. Open University, 1997.