Hughes, R., & Olsen, J. (1965). Donald Friend: By Robert Hughes. With a foreword by John Olsen. Edwards & Shaw.
Chicago-viite (17. p.)Hughes, Robert, ja John Olsen. Donald Friend: By Robert Hughes. With a Foreword by John Olsen. Sydney: Edwards & Shaw, 1965.
MLA-viite (8. p.)Hughes, Robert, ja John Olsen. Donald Friend: By Robert Hughes. With a Foreword by John Olsen. Edwards & Shaw, 1965.
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