APA (7th ed.) Citation

MacEwen, H. Highly Innovative Space Telescope Concepts. SPIE Digital Library.

Chicago Style (17th ed.) Citation

MacEwen, Howard. Highly Innovative Space Telescope Concepts. SPIE Digital Library.

MLA (8th ed.) Citation

MacEwen, Howard. Highly Innovative Space Telescope Concepts. SPIE Digital Library.

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