APA

Hatzfeld H. A., . (1957). Trends and styles in twentieth century French literature. Washington: Catholic University of America Press.

Chicago

Hatzfeld Helmut Anthony, . 1957. Trends and styles in twentieth century French literature. Washington: Catholic University of America Press.

Harvard

Hatzfeld H. A., . (1957). Trends and styles in twentieth century French literature. Washington: Catholic University of America Press.

MLA

Hatzfeld Helmut Anthony, . Trends and styles in twentieth century French literature. Washington: Catholic University of America Press. 1957.