Roth, J. K., & Sontag, F. (1988). The Questions of Philosophy. Belmont, California: Wadsworth.
Chicago Style CitationRoth, John K., i Frederick Sontag. The Questions of Philosophy. Belmont, California: Wadsworth, 1988.
Cita MLARoth, John K., i Frederick Sontag. The Questions of Philosophy. Belmont, California: Wadsworth, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.