Harper, M., Carballo V., G., & Sandí Sandí, M. (1997). Twenty years of the Foundation of the School of Library, Documentation and Information of the National University Intellectual Property in Costa Rica - The information technology environment.
Παραπομπή Chicago StyleHarper, Marlene, Guishelle Carballo V., και Magda Sandí Sandí. Twenty Years of the Foundation of the School of Library, Documentation and Information of the National University Intellectual Property in Costa Rica - The Information Technology Environment. 1997.
Παραπομπή MLAHarper, Marlene, Guishelle Carballo V., και Magda Sandí Sandí. Twenty Years of the Foundation of the School of Library, Documentation and Information of the National University Intellectual Property in Costa Rica - The Information Technology Environment. 1997.