Columbia : Columbia University Press and American Dialect Society
Majalah, Jurnal, Buletin
China : Chinese Culture University Press
Majalah, Jurnal, Buletin
Commager, Henry Steele, selector
Yale University Press, 1950
Buku Teks
Duke University Press,
Majalah, Jurnal, Buletin
edited by Harry R. Warfel, Ralph Gabriel
American Book Company, 1963
Buku Teks SO