Singer et al. 1956

Singer, C. and Holmyard, E.J. and Hall, A. R. and Williams, T. I. 1956. A History of Technology. Volume II. The Mediterranean Civilizations and the Middle Ages. London: Oxford University Press.

@book{singeretal1956,
  address   = {London},
  author    = {Singer, C. and Holmyard, E.J. and Hall, A. R. and Williams, T. I.},
  key       = {Singer et al. (1956)},
  publisher = {Oxford University Press},
  title     = {A History of Technology. Volume II. The Mediterranean Civilizations and the Middle Ages},
  year      = {1956}
}