APA (7th ed.) Citation

Hoover, R. X-Ray Optics, Instruments, and Missions IV. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Hoover, Richard. X-Ray Optics, Instruments, and Missions IV. SPIE Digital Library.

MLA (8th ed.) Citation

Hoover, Richard. X-Ray Optics, Instruments, and Missions IV. SPIE Digital Library.

Warning: These citations may not always be 100% accurate.