Additional information
by Institute of Navigation (Editor)
Contributing Authors Include Vernon Weihe, Henry F. Rempt, Einar S. Pedersen, John Larsen, James L. B. Cowan, Alton B. Moody, P. C. Sandretto, Mortimer Rogoff, P. V. H. Weems, R. Lloyd Harry, Henry A. Thomas, Richard Y. Miner, Leonard E. Gray, And J. D. Bottoms.