An Answer to "The Naked Ape" and Other Books on Aggression
New York: Pathfinder Press, (1973). Wraps. 23 p. 2nd printing. [12879]
New York: Pathfinder Press, (1973). Wraps. 23 p. 2nd printing. [12879]
New York: Pathfinder Press, (1972). Wraps. 23 p. 1st ed. [12880]
New York: Pathfinder Press, (1972). Wraps. 23 p. 2nd printing. [26931]
Boston: New England Free Press, ca. late-1960s. Small 4to. Wraps. Not paginated. [13075]
New York: Merit Publishers, (1969). Wraps. 63 p. [21424]
New York: Pathfinder Press, (1977). 8vo. Cloth. xviii, 491 p. 5th printing. Uncommon in hardback. [51220]