Ball, D. W. Field Guide to Spectroscopy. SPIE Digital Library.
Chicago Style (17th ed.) ZitazioaBall, David W. Field Guide to Spectroscopy. SPIE Digital Library.
MLA (9th ed.) ZitazioaBall, David W. Field Guide to Spectroscopy. SPIE Digital Library.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.