Illus.Scienven.Encyclo.How It Works./9.Gear-Indu.
Stuttman.H.S. New York.
Illus.Scienven.Encyclo.How It Works./9.Gear-Indu. - 1st Ed. - SHS 1978 - 140p. 22 cm.
Text in English
REF
REF-660 / STU
Illus.Scienven.Encyclo.How It Works./9.Gear-Indu. - 1st Ed. - SHS 1978 - 140p. 22 cm.
Text in English
REF
REF-660 / STU