TY - RPRT TI - VHF radio propagation data for the Cedar Rapids - Sterling, Anchorage - Barrow, and Fargo - Churchill test paths : April 1951 through June 1958 AU - Sugar, George R PY - 1960 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS TN 79 DO - 10.6028/NBS.TN.79 ER -