By Martínez Amador, Emilio María.
Barcelona R. Sopena 1957 .
2 v. , Added t. p. in Italian.

By Burns, Arthur F..
New York Fordham University Press 1957 .
[xi], 82 p. , Fourth printing. 24 cm..

By Boaz, Martha Terosse.
New York Scarecrow Press 1957 .
148 p.

By Leepa, Allen..
N.Y. A.S. Barnes & Co. 1957 .
256 p.

By Brinton, Crane.
New York Russell & Russell 1957 .
319 p.