Peter L. J. (Laurence) creator Hull R (Raymond) aut -us New York Bantam Books 1969 eng 169 p. This book is dedicated to all those who, working, playing, loving, living and dying at their Level of Incompetence, provided the data for the founding and development of the salutary science of Hierarchiology. n/29139 110208 20260805124154.0 00000000000041915