Cita APA (7a ed.)

University of Birmingham, entitat editora. (1992). Collins COBUILD English usage. Harper-Collins Publishers.

Cita Chicago Style (17a ed.)

University of Birmingham, entitat editora. Collins COBUILD English Usage. London: Harper-Collins Publishers, 1992.

Cita MLA (9a ed.)

University of Birmingham, entitat editora. Collins COBUILD English Usage. Harper-Collins Publishers, 1992.