Cita APA (7a ed.)

Watcyn-Jones, P. (2000). Group work: Intermediate. Pearson Education Limited.

Cita Chicago Style (17a ed.)

Watcyn-Jones, Peter. Group Work: Intermediate. Harlow: Pearson Education Limited, 2000.

Cita MLA (9a ed.)

Watcyn-Jones, Peter. Group Work: Intermediate. Pearson Education Limited, 2000.