APA

Windelband W., . (1961). Theories in logic. New York: Philosophical Library.

Chicago

Windelband Wilhelm, . 1961. Theories in logic. New York: Philosophical Library.

Harvard

Windelband W., . (1961). Theories in logic. New York: Philosophical Library.

MLA

Windelband Wilhelm, . Theories in logic. New York: Philosophical Library. 1961.