Williams, M. E. (1987). Annual review of information science and techonology, Vol.22. Elsevier International Projects.
Dyfyniad Arddull ChicagoWilliams, Martha E. Annual Review of Information Science and Techonology, Vol.22. New York: Elsevier International Projects, 1987.
Dyfyniad MLAWilliams, Martha E. Annual Review of Information Science and Techonology, Vol.22. Elsevier International Projects, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.