ISBN 0240817664 books & textbook
Social Game Design: Monetization Methods and Mechanics
CRC Press /2011-12-12 Paperback / 278 Pages
isbn-10: 0240817664 / isbn-13: 9780240817668
CRC Press /2011-12-12 Paperback / 278 Pages
isbn-10: 0240817664 / isbn-13: 9780240817668