Scheerer, O. Alexander Schadenberg, his life and work in the Philippines [microform].
Chicago-referens (17:e uppl.)Scheerer, Otto. Alexander Schadenberg, His Life and Work in the Philippines [microform].
MLA-referens (8:e uppl.)Scheerer, Otto. Alexander Schadenberg, His Life and Work in the Philippines [microform].
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.