ゴーマンUFO空中戦
1 2 3 Ruppelt, p. 30
↑ Ruppelt, p. 31
1 2 Clark, p. 452
1 2 3 4 5 6 Peebles, p. 29
1 2 3 4 Clark, p. 453
1 2 3 4 5 Peebles, p. 30
1 2 3 4 5 Peebles, p. 31