Schrödinger, E. (1956). Expanding universes. University Press.
Chicago Style aipamenaSchrödinger, Erwin. Expanding Universes. Cambridge [Eng.]: University Press, 1956.
MLA aipamenaSchrödinger, Erwin. Expanding Universes. University Press, 1956.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.