"0, . "
"science,technology and govermental policy: a ministerial conference for europe and north america/ " - 1 ed. - france : unesco 1979. - ", 183p.; 29 cm."
92-3-201718-0
(minespol ii)--
500. une
"science,technology and govermental policy: a ministerial conference for europe and north america/ " - 1 ed. - france : unesco 1979. - ", 183p.; 29 cm."
92-3-201718-0
(minespol ii)--
500. une