ISBN 0521872715 books & textbook
Schopenhauer: On the Fourfold Root of the Principle of Sufficient Reason and Other Writings (The Cambridge Edition of the Works of Schopenhauer)
Schopenhauer, Arthur Cartwright, David E. Erdmann, Edward E. Janaway, Christopher
Cambridge University Press /2012-11-12 Hardcover / 558 Pages
isbn-10: 0521872715 / isbn-13: 9780521872713
