Butler, C. J. (1993). Stellar photometry: Current techniques and future developments. Cambridge University Press.
Chicago Style aipamenaButler, C. J. Stellar Photometry: Current Techniques and Future Developments. Cambridge: Cambridge University Press, 1993.
MLA aipamenaButler, C. J. Stellar Photometry: Current Techniques and Future Developments. Cambridge University Press, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.