Cita APA (7th ed.)

Spencer, D., & Vaughan, D. (1995). Teamwork: Student's book (1a. ed.). Heinemann.

Cita Chicago (17th ed.)

Spencer, David, i David Vaughan. Teamwork: Student's Book. 1a. ed. Oxford: Heinemann, 1995.

Cita MLA (9th ed.)

Spencer, David, i David Vaughan. Teamwork: Student's Book. 1a. ed. Heinemann, 1995.