Lettrich, Jozef
Frederick A. Praeger, 1955
Buku Teks
edited by Maggie Toy
Academy Editions, 1996
Buku Teks
Heinz GaÌ?rtner, Adrian Hyde-Price, Erich Reite, editor
Lynne Rienner Publishers, 2000
Buku Teks
Heinz GaÌ?rtner, Adrian Hyde-Price, Erich Reiter
Lynne Rienner Publishers, 2001
Buku Teks
edited by Klaus Gottstein
Campus Verlag , 1992
Buku Teks