Cita APA (7a ed.)

Wellner, M. N. (1991). Elements of physics. [s.n.].

Cita Chicago Style (17a ed.)

Wellner, Marcel Nahum. Elements of Physics. New York: [s.n.], 1991.

Cita MLA (8a ed.)

Wellner, Marcel Nahum. Elements of Physics. [s.n.], 1991.