edited by Fritz Stern
Meredian Books, 1959
Buku Teks
edited by Fritz Stern
Merridian Book, 1972
Buku Teks
Butterfield, Herbert, author
Cambridge University Press, 1969
Buku Teks
Butterfield, Herbert, author
Cambridge University Press, 1955
Buku Teks
edited by C.H. Philips
Oxford University Press, 1961
Buku Teks