Ziembiński, Z., Ziemba, Z., & Ter-Oganian, L. (1976). Practical logic. PWN-Polish Scientific Publishers ; D. Reidel.
Citazione stile Chigago Style (17a edizione)Ziembiński, Zygmunt, Zdzisław Ziemba, e Leon Ter-Oganian. Practical Logic. Warszawa : Dordrecht: PWN-Polish Scientific Publishers ; D. Reidel, 1976.
Citatione MLA (9a ed.)Ziembiński, Zygmunt, et al. Practical Logic. PWN-Polish Scientific Publishers ; D. Reidel, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.