Description
Published:Vol. 1, no. 1 (spring 1958)-vol. 30, no. 6 (Nov.-Dec. 1987)
Item Description:Vol. 27, n. 1-6 y vol. 28, n. 1 y 2, ejemp. fotocopiados.
Physical Description:v. : il. ; 28 cm
Publication Frequency:Bimestral
ISSN:00345334
Related Items:Continuada por: Research technology management = ISSN 0895-6308.