By Williamson, Harold Francis.
Evanston, Ill. Northwestern University Press 1959 .
xvi, 864 p. , Vol. 2 by H. F. Williamson et al. 0313227896 (lib. bdg. : v. 1) (ed. 1981) | 031322790X (lib. bdg. : v. 2) (ed. 1981)

By Williamson, Harold Francis.
New York Prentice-Hall 1954 .
576 p. 22 cm..