Bergson, Abram
Harvard University Press , 1961
Buku Teks
Bergson, Abram
Columbia University Press , 1954
Buku Teks
Hoeffding, Oleg
Columbia University Press , 1954
Buku Teks
Chapman, Janet G., author
Harvard University Press, 1963
Buku Teks
Graham, Loren R., author
Cambridge University Press, 1993
Buku Teks