Citazione Stile APA (7a Edizione)

Płoszajski, P. Z., & Sikora, S. (1990). Knowledge for change: Developing practical theory. IPS. PAS.

Citazione stile Chigago Style (17a edizione)

Płoszajski, Piotr Zbigniew., e Stefan Sikora. Knowledge for Change: Developing Practical Theory. Warszawa: IPS. PAS, 1990.

Citatione MLA (9a ed.)

Płoszajski, Piotr Zbigniew., e Stefan Sikora. Knowledge for Change: Developing Practical Theory. IPS. PAS, 1990.