Ackermann, R. J. (1970). Modern deductive logic: An introduction to its techniques and significance. Doubleday.
Chicago-Zitierstil (17. Ausg.)Ackermann, Robert John. Modern Deductive Logic: An Introduction to Its Techniques and Significance. Garden City, N.Y: Doubleday, 1970.
MLA-Zitierstil (9. Ausg.)Ackermann, Robert John. Modern Deductive Logic: An Introduction to Its Techniques and Significance. Doubleday, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.