Cita APA (7a ed.)

Armstrong, D. M. (1961). Perception and the physical world. Routledge & Kegan Paul [etc.].

Cita Chicago Style (17a ed.)

Armstrong, D. M. Perception and the Physical World. London [etc.]: Routledge & Kegan Paul [etc.], 1961.

Cita MLA (9a ed.)

Armstrong, D. M. Perception and the Physical World. Routledge & Kegan Paul [etc.], 1961.