Cita APA (7a ed.)

Strzałkowski, W. (1982). The active character of thinking. [s. n.].

Cita Chicago Style (17a ed.)

Strzałkowski, Wiesław. The Active Character of Thinking. London: [s. n.], 1982.

Cita MLA (9a ed.)

Strzałkowski, Wiesław. The Active Character of Thinking. [s. n.], 1982.