Wilf, A., Merlin, S., & Bergmann, H. (1964). The Ascent of Man: Alexander Wilf, Samuel Merlin. Foreword by S. Hugo Bergman. Thomas Yoseloff.
Lua i Stíl Chicago (17ú heag.)Wilf, Alexander, Samuel Merlin, agus Hugo Bergmann. The Ascent of Man: Alexander Wilf, Samuel Merlin. Foreword by S. Hugo Bergman. New York [u.a.]: Thomas Yoseloff, 1964.
Lua MLA (8ú heag.)Wilf, Alexander, et al. The Ascent of Man: Alexander Wilf, Samuel Merlin. Foreword by S. Hugo Bergman. Thomas Yoseloff, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.