M. E. Johnson

An atlas of basic transmission

An atlas of basic transmission loss for 0.125 to 15.5 GHZ

1980

An atlas of basic transmission

An atlas of basic transmission loss for 125 MHZ-15.5 GHZ

1980

Applications guide for propaga

Applications guide for propagation and interference analysis computer programs (0.1 to 20 GHz)

1978

Transmission loss atlas for se

Transmission loss atlas for select aeronautical service bands from 0.125 to 15.5 GHz

1969

Interference predictions for V

Interference predictions for VHF/UHF air navigation aids

1967

Geologic structure of the Pittsburgh quadrangle, PA

1923

Oil & gas development in Pennsylvania in 1922

1923

Oil and gas sands in the north half of the Pittsburgh quadrangle, Penna

1923

New oil pool at Tidioute and gas pools near Corry and Meadville, Penna

1922

Dayspring in the far West

1875