MARAL GERARD. (2003). SATELLITE COMMUNICATIONS SYSTEMS: SYSTEMS ,TECHNIQUES AND TECHNOLOGY 4TH ED (4TH ED.). JOHN WILEY & SONS.
Lua i Stíl Chicago (17ú heag.)MARAL GERARD. SATELLITE COMMUNICATIONS SYSTEMS: SYSTEMS ,TECHNIQUES AND TECHNOLOGY 4TH ED. 4TH ED. HOBOKEN: JOHN WILEY & SONS, 2003.
Lua MLA (9ú heag.)MARAL GERARD. SATELLITE COMMUNICATIONS SYSTEMS: SYSTEMS ,TECHNIQUES AND TECHNOLOGY 4TH ED. 4TH ED. JOHN WILEY & SONS, 2003.
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