Cita APA (7th ed.)

Brentano, F. (1981). The theory of categories. Martinus Nijhoff.

Cita Chicago (17th ed.)

Brentano, Franz. The Theory of Categories. La Haya: Martinus Nijhoff, 1981.

Cita MLA (9th ed.)

Brentano, Franz. The Theory of Categories. Martinus Nijhoff, 1981.