1
Yazar: Wilkinson, Henry Robert.
Baskı/Yayın Bilgisi 1951
...Electronic books....
Full text available from Earth, Atmospheric & Aquatic Science Database
Full text available from Engineering Database
Elektronik Ekitap
2
Yazar: Sondhaus, Lawrence
Baskı/Yayın Bilgisi 2004
...Electronic books....
Full text available from Advanced Technologies & Aerospace Database
Elektronik Ekitap