Ozawa, Sakihito books & textbook
Hosokawa seiken nihyaku-gojūnichi no shinjitsu! (Japanese Edition)
Tōkyō Shuppan /1994T Tankobon Hardcover / 237 Pages
isbn-10: 4924644447 / isbn-13: 9784924644441
Kankyō fainansu : Shakaiteki sekinin tōshi to kankyō hairyo sokushinhō
Sakihito Ozawa; Yasuho Ema; Ken'ichi Yoshida
Tōkyō : Kankyō Shinbunsha, 2005. /2005-06-01 Tankobon Hardcover
isbn-10: 4860180887 / isbn-13: 9784860180881
Nyū riberaru kokkaron: Wareware ga mezasu mono wa nani ka (Japanese Edition)
PHP Kenkyūjo /1994T Hardcover / 197 Pages
isbn-10: 4569544983 / isbn-13: 9784569544984
