Ballantine Books, 1956 Series
 
Cover for Utterly Mad (Ballantine Books, 1956 series) #178
Cover for Utterly Mad (Ballantine Books, 1956 series) #266
Cover for Utterly Mad (Ballantine Books, 1956 series) #654
Cover for Utterly Mad (Ballantine Books, 1956 series) #U2104
Cover for Utterly Mad (Ballantine Books, 1956 series) #01566