Pritchard , W. L., By , S. . ., & Nelson , R. A. (1993). Satellite communicatiomsystems engineering (2nd ed.). Prenrice Hall.
Chicago-čujuhus (17. p.)Pritchard , Wilbur L., Suyderhoud By , juo Robert A. Nelson. Satellite Communicatiomsystems Engineering. 2nd ed. Englewood Cliffs , N. J: Prenrice Hall, 1993.
MLA-čujuhus (9. p.)Pritchard , Wilbur L., et al. Satellite Communicatiomsystems Engineering. 2nd ed. Prenrice Hall, 1993.
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