Friedrich, Carl J., author
Prederick A. Praeger, 1965
Buku Teks
Friedrich, Carl J., author
Frederick A. Praeger, 1962
Buku Teks
Foreign Language Press, 1957
Buku Teks
Barbu, Zevedei, author
Routledge & Kegan Paul, 1956
Buku Teks
Rossiter, Clinton, 1917-1970, author
A Harbinger Book, 1963
Buku Teks