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by Leakey, Richard E.; Lewin, Roger
by Savage-Rumbaugh, Sue; Lewin, Roger
by Savage-Rumbaugh, E. Sue; Lewin, Roger
by Lewin, Roger
by Foley, Robert Andrew; Lewin, Roger
by Lewin, Moshe; Portal, Roger
by Roger Lewin; Garniss H. Curtis; Carl Swisher