APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.