4 sets of Griffin-ITL Vufoil transparencies for use with an overhead projector, with lecture notes illustrating the electronic structure of simple organic molecules, made by ITL Vufoils Ltd., London, 1969
4 sets of Griffin-ITL Vufoil transparencies for use with an overhead projector, with lecture notes illustrating the electronic structure of simple organic molecules, made by ITL Vufoils Ltd., London, 1969
