Brody, Andrus, author
Academiai Kiado, 1970
Buku Teks
Patinkin, Don, author
Harper & Row, 1965
Buku Teks
Ryan, W.J.L.
Macmillan, 1958
Buku Teks
Beckwith, Burnham Putnam, author
Columbia University Press, 1955
Buku Teks
Hegeland, Hugo, author
Elanders Boktryckeri Aktiebolag, 1951
Buku Teks