Hoover, R. X-Ray Optics, Instruments, and Missions. SPIE Digital Library.
Citazione stile Chigago Style (17a edizione)Hoover, Richard. X-Ray Optics, Instruments, and Missions. SPIE Digital Library.
Citatione MLA (9a ed.)Hoover, Richard. X-Ray Optics, Instruments, and Missions. SPIE Digital Library.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.