Artikel Jurnal
by Aleksey Maksimovich Gor`kiy; translated by Margaret Wettlin
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks
Del Aguila, Juan M., author
Westview Press, 1984
Buku Teks
editor, Spyros Doxiadis ; editorial committee, Roger Blaney [and others]
John Wiley & Sons, 1987
Buku Teks
edited by James William Morley
Princeton University Press, 1971
Buku Teks