American Psychological Association
Bradley, Raymond, & Swarlz, Norman ( 1979 ). Possible Worlds an Introduction to Logic and Its Philosophy ( 00 ed. ). Hackett Publishing Co Inc..
Modern Language Association
Bradley, Raymond and Swarlz, Norman. Possible Worlds an Introduction to Logic and Its Philosophy . Hackett Publishing Co Inc.. 1979
Chicago Citation
Bradley, Raymond and Swarlz, Norman. Possible Worlds an Introduction to Logic and Its Philosophy . 00 .USA
: Hackett Publishing Co Inc., 1979.
American Medical Association
Bradley, Raymond and Swarlz, Norman. Possible Worlds an Introduction to Logic and Its Philosophy . Hackett Publishing Co Inc.; 1979.