File:Genesis and Delta II on launch pad (KSC-01PP-1412).jpg - Wikimedia Commons
Delta II Primed for Return to Flight OCO-2 Mission on Tuesday - AmericaSpace
File:Delta II Dawn liftoff 2.jpg - Wikipedia
Lancia Delta II (836) technical specifications and fuel consumption —
File:Delta II 7925-10L with STEREO on Launch Pad 17B.jpg - Wikimedia Commons
File:Delta II 7925 launches with 2001 Mars Odyssey spacecraft (KSC-01PP-0742).jpg - Wikimedia Commons
File:Delta II and NPP at dusk.jpg - Wikipedia
File:Delta 6920-10 launch with ROSAT.jpg - Wikipedia
Doom II, Doom Wiki