(1966). Otto Gutfreund: Sculpture and drawings.
Lua i Stíl Chicago (17ú heag.)Otto Gutfreund: Sculpture and Drawings. London, 1966.
Lua MLA (8ú heag.)Otto Gutfreund: Sculpture and Drawings. 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.