Libera, Z. (1989). Some comments on J. Goldberg's paper: Zdzisław Libera. Dialectics and Humanism.
Chicago-Zitierstil (17. Ausg.)Libera, Zdzisław. "Some Comments on J. Goldberg's Paper: Zdzisław Libera." Dialectics and Humanism 1989.
MLA-Zitierstil (8. Ausg.)Libera, Zdzisław. "Some Comments on J. Goldberg's Paper: Zdzisław Libera." Dialectics and Humanism, 1989.
警告：這些引文格式不一定是100％准確.