Spencer, D., & Vaughan, D. (1995). Teamwork: Student's book (1a. ed.). Heinemann.
Tohutoru Kātū Chicago (17th ed.)Spencer, David, me David Vaughan. Teamwork: Student's Book. 1a. ed. Oxford: Heinemann, 1995.
Tohutoro MLA (9th ed.)Spencer, David, me David Vaughan. Teamwork: Student's Book. 1a. ed. Heinemann, 1995.
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