CSNET
1 2 “The Internet—From Modest Beginnings”. NSF website. 2011年9月30日閲覧。
↑ Dave Crocker (2008年8月18日). “Impact of Email Work at The Rand Corporation in the mid-1970s”. 2011年9月30日閲覧。
↑ Douglas Comer (October 1983). “History and overview of CSNET”. Communications (Association for Computing Machinery) 26 (10). doi:10.1145/358413.358423.
↑ Peter J. Denning; Anthony Hearn; C. William Kern (April 1983). “History and overview of CSNET”. Proceedings of the symposium on Communications Architectures & Protocols (SIGCOMM, Association for Computing Machinery) 13 (2). doi:10.1145/1035237.1035267.