The radio amateur's handbook
American Radio Relay League
The American Radio Relay League, Inc., 1962
 Buku Referensi
Kasser, Joe, author
Software for amateur radio
Tab Books, 1984
 Buku Teks
Launay, Françoise, author
The astronomer Jules Janssen : a globetrotter of celestial physics
[Springer, ], 2012
 eBooks
Sellers, David, author
In search of William Gascoigne : seventeenth century astronomer
[Springer, ], 2012
 eBooks
Library catalogs: changing dimensions
University of Chicago , 1963
 Buku Teks
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