Engineering Index thesaurus. - Published 1972 Author Engineering Index, inc. Catalog Record Limited (search only) Agricultural engineering index, 1961-1970, by Glenn E. Hall and Carl W. Hall. Published 1972 Author Hall, Glenn E. Hall, Carl W. American Society of Agricultural Engineers. Catalog Record Limited (search only)
Agricultural engineering index, 1961-1970, by Glenn E. Hall and Carl W. Hall. Published 1972 Author Hall, Glenn E. Hall, Carl W. American Society of Agricultural Engineers. Catalog Record Limited (search only)