Cita APA (7a ed.)

Haring, B. (1900). Moral fundamental. s.n.

Cita Chicago Style (17a ed.)

Haring, Bernhard. Moral Fundamental. [s.l.: s.n, 1900.

Cita MLA (9a ed.)

Haring, Bernhard. Moral Fundamental. s.n, 1900.