Gunston, Bill. frey50 AH-64 Apache / Bill Gunston. - London : Osprey (1986) 1986 - 48 p. : ill. (some col.), plans ; 25 cm. - Combat aircraft series ; 6 . ISBN: 0850457211 (pbk) : 3.95 Nat. Bib. No.: Subjects--Topical Terms: Apache (Attack helicopter)--History. Subjects--Index Terms: LC Class. No.: UG1233 Dewey Class. No.: 629.133/352