"kilford, w k. "
elementary air survey: / w.k. kilford - 4 ed. - uk : pitman 1979. - "xii, 345p.; 23 cm."
includes bibliography
0 273 01078 6
526. 982 3 kil
elementary air survey: / w.k. kilford - 4 ed. - uk : pitman 1979. - "xii, 345p.; 23 cm."
includes bibliography
0 273 01078 6
526. 982 3 kil