Manual for surveying national scientific and technological potential : collection and processing of data : management of the «R&D» system / UNESCO
. - Paris : UNESCO, 1970
. - 251 p. : il. 26 cm
. - (Science policy studies and documents; n.º 15)
C.S6.07.09.2/Cx79
C.S6.07.09.2/Cx79
