Gerhart, G. Unmanned Systems Technology VIII. SPIE Digital Library.
Chicago-čujuhus (17. p.)Gerhart, Grant. Unmanned Systems Technology VIII. SPIE Digital Library.
MLA-čujuhus (9. p.)Gerhart, Grant. Unmanned Systems Technology VIII. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.