Lewallen, Constance M.
University of California, Berkeley Art Museum and Pacific Film Archive, 2003
Buku Teks
Noack, Paul
G.Olzog, 1960
Buku Teks
Edwards, Robert
Rigby, 1969
Buku Teks
New York Grapic Society, 1957
Buku Referensi
New York Graphic Society, 1956
Buku Referensi