Kautsky, John H.
Krieger Pub. Co, 1980
Buku Teks
Kautsky, John H., author
John Wiley & Sons, 1967
Buku Teks
edited by Robert E. Ward & Dankward A. Rustews
Princeton University Press, 1968
Buku Teks
Helen Margetts, Perri 6, Christopher Hood, editors
Oxford University Press, 2012
Buku Teks
Dreyer, June Teufel, 1939-, author
Routledge, Taylor and Francis Group, 2019
Buku Teks