OCDE
The measurement of scientific and technical activities : proposed standard practice for surveys of research and experimental development : frascati manual 1993 / OECD
The measurement of scientific and technical activities : proposed standard practice for surveys of research and experimental development : frascati manual 1993 / OECD
. - Paris : OECD, 1994
. - 261 p. 23 cm
92-64-14202-9 (Brochado)
303.8