Templat:Scientific American Frontiers
"Scientific American Frontiers, on season 1". Scientific American Frontiers. Chedd-Angier Production Company. 1990–1991. PBS. Diarsipkan dari versi asli tanggal 2006.
"Scientific American Frontiers, on season 1". Scientific American Frontiers [simple; en]. Chedd-Angier Production Company. 1990–1991. PBS. Diarsipkan dari versi asli tanggal 2006. Pemeliharaan CS1: Format tanggal (link)
