Walter, J. E. (1901). The principles of knowledge. The principles of knowledge with remarks on the nature of reality.
Chicago-Zitierstil (17. Ausg.)Walter, Johnston Estep. "The Principles of Knowledge." The Principles of Knowledge with Remarks on the Nature of Reality 1901.
MLA-Zitierstil (8. Ausg.)Walter, Johnston Estep. "The Principles of Knowledge." The Principles of Knowledge with Remarks on the Nature of Reality, 1901.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.