Animal Planet | minor planet | Mercury (planet) | Lonely Planet | Planet of the Apes | planet | Forbidden Planet | Planet Rock | Planet of the Daleks | Planet of the Apes (2001 film) | Planet of the Apes (1968 film) | Planet | Fantastic Planet | Animal Planet Nordic | Treasure Planet | Planet of Evil | Planet in Peril | Planet Earth (TV series) | Planet Earth | Lost Planet of the Gods | Planet Rock (song) | Planet of Fire | Minor Planet Center | Minor planet | Earth-like planet | Commander Cody and His Lost Planet Airmen | Beneath the Planet of the Apes | The Planet Smashers | The Blue Planet | Saving Planet Earth |
Kline is best known for an apocryphal literary feud with fellow author Edgar Rice Burroughs, in which he supposedly raised the latter's ire by producing close imitations (Planet of Peril (1929) and two sequels) of Burroughs's Martian novels, though set on Venus; Burroughs, the story goes, then retaliated by writing his own Venus novels, whereupon Kline responded with an even more direct intrusion on Burroughs's territory by boldly setting two novels on Mars.