APA (7th ed.) Citation

Hoover, R. Instruments, Methods, and Missions for Astrobiology IX. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Hoover, Richard. Instruments, Methods, and Missions for Astrobiology IX. SPIE Digital Library.

MLA (8th ed.) Citation

Hoover, Richard. Instruments, Methods, and Missions for Astrobiology IX. SPIE Digital Library.

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