Survey of the activities of the I.C.S.U. SCINTIFIC UNIONS, special and scineitic committees and commissions of I.C.S.U.
Survey of the activities of the I.C.S.U. SCINTIFIC UNIONS, special and scineitic committees and commissions of I.C.S.U. - Unesco. 1970 - 366 p.
Scientific Union
Survey
007 / I 1 S