Schofield, Sue
Croom Helm, 1979
Buku Teks
edited by Phillips Ruopp
W. van Hoeve, 1953
Buku Teks
edited by Phillips Ruopp; with a foreword by S. Radhakrishnan
W. van Hoeve, [1953]
Buku Teks
Badgley, John H., author
The Free Press, 1971
Buku Teks
Meier, Gerald M., author
Oxford University Press, 1974
Buku Teks