APA Edition Citation

Twardowski, K. (1977). On the content and object of presentations: A psychological investigation. Nijhoff.

Chicago Edition Citation

Twardowski, Kazimierz. On the Content and Object of Presentations: A Psychological Investigation. The Hauge: Nijhoff, 1977.

MLA Edition Citation

Twardowski, Kazimierz. On the Content and Object of Presentations: A Psychological Investigation. Nijhoff, 1977.

Warning: These citations may not always be 100% accurate.