Robert Ardrey's Nature of Man

380 pages 1961

nonfiction history science reflective medium-paced

missing page info 1961

nonfiction history science challenging informative slow-paced

400 pages 1966

nonfiction history science challenging informative reflective slow-paced

415 pages 1970

nonfiction science challenging informative reflective slow-paced

224 pages paperback 1976

nonfiction nature science