Pierce, John Alvin creator McGraw-Hill Book Co New York 1948 1st ed xiv, 476 p illus maps diagrs Part.1 The Loran System (Page-3), Part.2 Loran Equipment (Page-197). Eidted. by J.A. Pierce, A.A. McKenzie & R.H. Woodward. Pierce, John Alvin Loran, long range navigation 621.384191,LOR 48006305 20221222101622.0