APA

Sorell W., . (1972). The Swiss. London: Oswald Wolff.

Chicago

Sorell Walter, . 1972. The Swiss. London: Oswald Wolff.

Harvard

Sorell W., . (1972). The Swiss. London: Oswald Wolff.

MLA

Sorell Walter, . The Swiss. London: Oswald Wolff. 1972.