Guide to Buffy and Angel, Tauris Parke Paperbacks. External links "Doppelgangland" at the BBC "Doppelgangland" at BuffyGuide.com Buffy the Vampire Slayer (season 3) episodes 1999 American television episodes American LGBT-related television episodes Mass media portrayals of bisexuality Television episodes about parallel universes Television episodes written by Joss Whedon Television episodes directed by Joss Whedon