ISBN 9784872754032 books & textbook
Danube Journey of soil and water - trip to Romania, Yoshio Komatsu & Mamoru child memory (INAX live notes) (2006) ISBN: 4872754034 [Japanese Import]
Tōkyō : INAX Shuppan, 2006. /2006-10-01 Tankobon Hardcover
isbn-10: 4872754034 / isbn-13: 9784872754032