530,107 ROLLS EDMUND T. /red./ Brain-stimulation reward. A collection of papers prep.for the First International Conference on... at Janssen Pharmaceutica, Beerse,Belgium on April 21-24,1975. Ed.by Albert Wauquier and Edmund T.Rolls. Amsterdam 1976 North-Holiand Publ.Co.; New York,American Elsevier Publ.Co,Inc. 8° s. XXVII,nlb.1,622,il.