Dyfyniad APA

Zeman, J. J. (1973). Modal logic: The Lewis-modal systems. Clarendon Press.

Dyfyniad Arddull Chicago

Zeman, J. Jay. Modal Logic: The Lewis-modal Systems. London: Clarendon Press, 1973.

Dyfyniad MLA

Zeman, J. Jay. Modal Logic: The Lewis-modal Systems. Clarendon Press, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.