Dummer, G. W. A., & Robertson, J. M. (1967). Medical electronic laboratory equipment 1967-68. Pergamon Press.

Dummer, G. W. A., and J. Mackenzie Robertson. Medical Electronic Laboratory Equipment 1967-68. Oxford ; Sydney: Pergamon Press, 1967.

Dummer, G. W. A., and J. Mackenzie Robertson. Medical Electronic Laboratory Equipment 1967-68. Pergamon Press, 1967.