Alston, R. (1967). Cellular continuity and development. Foresman comoany.
Chicago Style aipamenaAlston, Ralph. Cellular Continuity and Development. USA: Foresman comoany, 1967.
MLA aipamenaAlston, Ralph. Cellular Continuity and Development. Foresman comoany, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.