ISBN 4817194316 books & textbook
Kankyo bijinesu no yukue : Gurobaru kyoso o kachinuku tameni.
Shin'ya Nagasawa; Mitsubishi UFJ Risachi & Konsarutingu Kabushiki Gaisha.;
Nikkagirenshuppansha. /2012-03-01 Tankobon Hardcover
isbn-10: 4817194316 / isbn-13: 9784817194312
