Etrog, S. (1969). Sorel Etrog: Recent sculpture : January 6-February 1, 1969 / Felix Landau Gallery. Felix Landau Gallery.
Cita Chicago (17th ed.)Etrog, Sorel. Sorel Etrog: Recent Sculpture : January 6-February 1, 1969 / Felix Landau Gallery. Los Angeles: Felix Landau Gallery, 1969.
Cita MLA (8th ed.)Etrog, Sorel. Sorel Etrog: Recent Sculpture : January 6-February 1, 1969 / Felix Landau Gallery. Felix Landau Gallery, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.