Johnson, Willoughby H., Conditions of man. [Compiled] by Willoughby Johnson and Dale E. Bonnette. - Boston, Houghton Mifflin [1968] - xii, 323 p. 24 cm. LCCN: 68002521 Subjects--Topical Terms: Human beings. LC Class. No.: 128.08 / J66C Dewey Class. No.: 128/.08 / J66C