Barber, H. B. Penetrating Radiation Systems and Applications III. SPIE Digital Library.
Chicago-čujuhus (17. p.)Barber, H. Bradford. Penetrating Radiation Systems and Applications III. SPIE Digital Library.
MLA-čujuhus (9. p.)Barber, H. Bradford. Penetrating Radiation Systems and Applications III. SPIE Digital Library.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.