Freeman, Otis W., author
John Wiley & Sons, 1951
Buku Teks
Freeman, Otis W., author
John Wiley, 1951
Buku Teks
edited Otis W. Freeman
Wiley, 1951
Buku Teks
Oliver, Douglas L., author
Harvard University Press, 1951
Buku Teks
Oliver, Douglas L., author
Harvard University Press, 1958.
Buku Teks