Chemotherapy under special conditions / edited by H. Schönfeld, R. W. Brockman [and] F. E. Hahn.

Cultural development some regional experiences / Unesco

Rural diversification under varying geographical conditions: an explanatory survey of four clusters of small-scale industry in Bantul District, Special Region of Yogyakarta

World heritage: nature & culture under the protection of UNESCO

Chemical axperimentation under extreme conditions