Kossmann, Alfred
Em. Querido's Uitgeverij N.V., 1966
Buku Teks
Thomas Leithch and Lelan Poague
Wiley-Blackwell, 2011
Buku Teks
Kazin, Alfred
Secker & Warburg, 1963
Buku Teks
Pomerance, Murray, author
Polity Press, 2013
Buku Teks
Maund, Alferd
University of Illinois Press , 1999
Buku Teks