Feininger, L. (1969). Lyonel Feininger: April - May 1969, Marlborough-Gerson Gallery, New York. Gallery.
Chicago-Zitierstil (17. Ausg.)Feininger, Lyonel. Lyonel Feininger: April - May 1969, Marlborough-Gerson Gallery, New York. New York, NY: Gallery, 1969.
MLA-Zitierstil (8. Ausg.)Feininger, Lyonel. Lyonel Feininger: April - May 1969, Marlborough-Gerson Gallery, New York. Gallery, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.