Stevens, Albert W + McNally, Paul A books & textbook
PHOTOGRAPHING THE ECLIPSE OF 1932 FROM THE AIR From Five Miles Above the Earth's Surface, the National Geographic Society-Army Air Corps Survey Obtains Successful Photographs of the Moon's Shadow + OBSERVING A TOTAL ECLIPSE OF THE SUN
Stevens, Albert W + McNally, Paul A
Nat Geographic Mag /1932T Pamphlet
