(1977) On Market Speculation by David Harahus, RARE, Edson Gould, W.D. Gann
Softcover, Alanpuri Trading, Los Angeles, 2024, REPRINT, illustrated, an exact facsimile of the 1977 original, 40 pp., Contents: A rare 40 page work by the late David Harahus covering market topics that were barely talked about in the 1970s.