Marchand, E. W. (1978). Gradient index optics. Academic Press.
Chicago Style aipamenaMarchand, Erich W. Gradient Index Optics. New York: Academic Press, 1978.
MLA aipamenaMarchand, Erich W. Gradient Index Optics. Academic Press, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.