Huebner, W. F. E. (1990). Physics and Chemistry of comets.
Chicago Style aipamenaHuebner, Walter F; Ed. Physics and Chemistry of Comets. Berlin, Springer Verlag, 1990.
MLA aipamenaHuebner, Walter F; Ed. Physics and Chemistry of Comets. 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.