Williams, Colin H.
European research index ; a guide to European research including medicine, agriculture and engineering - 2nd ed. - London : Francis Hodgson, 1969. - v.2, 1738 páginas
Directorios
European research index ; a guide to European research including medicine, agriculture and engineering - 2nd ed. - London : Francis Hodgson, 1969. - v.2, 1738 páginas
Directorios