PFEIFFER J.W. (1993). USING ROLE PLAYS INHRD. ADITYA BOOKS.
Cita Chicago (17th ed.)PFEIFFER J.W. USING ROLE PLAYS INHRD. ADITYA BOOKS, 1993.
Cita MLA (9th ed.)PFEIFFER J.W. USING ROLE PLAYS INHRD. ADITYA BOOKS, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.