30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.
Condition:
NewNew
Author: Kosaku Yosida ISBN 10: 0387960473. Title: Operational Calculus: A Theory Of Hyperfunctions (Applied Mathem Item Condition: New. Edition: Softcover reprint of the original 1st ed. 1984 List Price: -. ).