Instant purchase is welcome. I used this book as a reference for my doctoral dissertation while I was enrolled in a graduate program at a former Imperial University. This is a very good book that explores the roots and importance of mutual aid from a sociological perspective. It provides very detailed descriptions and explanations of how residents help each other in the community. There are markings with a highlighter and pencil from when I was writing my master's thesis. Please be aware that the book has dents and scratches. For those who use it for research, the highlighter markings may be helpful. List price: ¥4,180 503 pages 2nd edition, 2012 - Title: Theory of Mutual Aid Society - Author: Morio Onda - Publisher: Sekai Shisosha