Dyfyniad APA

Towers, J. M. (1969). Role - playing for supervisors. Pergaman press.

Dyfyniad Arddull Chicago

Towers, J. Maxwell. Role - Playing for Supervisors. London: Pergaman press, 1969.

Dyfyniad MLA

Towers, J. Maxwell. Role - Playing for Supervisors. Pergaman press, 1969.

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