PI Cow: Notebook, Journal, Planner or Diary | Size 6 x 9 | 110 Lined Pages | Pi & Math & Algebra Fan Stuff | Get this gift for the greatest Math Fan and algebra science geek in your life!

by scriper Publishing Paperback details (USA). ISBN: 978-1-0948-2205-1 ISBN-10: 1-0948-2205-1 Independently published · April 2019