Begley, D. Free-Space Laser Communication Technologies II. SPIE Digital Library.
Chicago-čujuhus (17. p.)Begley, David. Free-Space Laser Communication Technologies II. SPIE Digital Library.
MLA-čujuhus (9. p.)Begley, David. Free-Space Laser Communication Technologies II. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.