FisherR.C., PetersonJ.C., BeecherJ. W., JohnsonJ. S., and BoastC. (1990) Agricultural Information Resource Centers. International Association of Agricultural Librarians and Documentalists, Urbana, Illinois, USA.
2.
HahnH., and StoutR. (1994) Internet: Complete Reference. Osborne McGraw-Hill, Berkeley, California, USA.
3.
HarasimL.M. (1993) Global Networks. MIT Press, Cambridge, Massachusetts, USA.
4.
QuartermanJ.S. (1990) The Matrix: Computer Networks and Conferencing Systems Worldwide. Digital Press, Bedford, Massachusetts, USA.
5.
RapaportM. (1991) Computer Mediated Communications. John Wiley and Sons, New York, New York, USA.
