^Massie, K., & Perry, S. D. (2002). Hugo Gernsback and Radio Magazines: An Influential Intersection in Broadcast History." Journal of Radio Studies, 9, pp. 267–268.
^ abcHugo Gernsback at the Internet Speculative Fiction Database (ISFDB). Retrieved 2013-04-20. Select a title to see its linked publication history and general information. Select a particular edition (title) for more data at that level, such as a front cover image or linked contents.