Appel, Fred. The moon and beyond / Fred Appel. - London : Aldus, 1971. - 191 p. : col. ill. ; 27 cm. - Aldus encyclopedia of discovery and exploration ; . - Aldus encyclopedia of discovery and exploration ; . Subjects--Topical Terms: Space flight to the moon.Astronautics. Subjects--Geographic Terms: Moon--Exploration. LC Class. No.: TL790 / .A67 1973