A Simulation Study of Personal and Mass Communication {whole original article, verbatim photocopy} Stein Bråten's (1968) article, xerox of the original article in the IAG Quarterly journal, IFIP Administrative Data Processing Group, (Journal of the administrative data processing group of the international federation for information processing), published in Amsterdam 1968. This represents if not the first, then certainly one of the first published examples of using computers in scientific modelling of interpersonal communication. The programming language here used is Simula, originated by Ole-Johan Dahl and Kristen Nygaard, the language (containing Algol as a subset) which is acknowledged to be the source of the concept of object orientation in later programming languages such as C++ and Java. * * * * * This is part of the stein-braten.com (formerly, stein-braten.net) overview over the publications of Stein Braten, containing also some previously unpublished material, and some books which have gone out of print, as well as a comprehensive ISBN-oriented list of his works. (The present site is maintained by his son Henning Reusch Braten on Stein Braten's initiative.)