APA (7th ed.) Citation

Butler, J. Earth Observing Systems XXVI. SPIE Digital Library.

Chicago Style (17th ed.) Citation

Butler, James. Earth Observing Systems XXVI. SPIE Digital Library.

MLA (8th ed.) Citation

Butler, James. Earth Observing Systems XXVI. SPIE Digital Library.

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