Ella Thea Smith. (1959). Exploring biology: The science of living things. New York: Harper, Brace and World.
Chicago Style aipamenaElla Thea Smith. Exploring Biology: The Science of Living Things. New York: Harper, Brace and World, 1959.
MLA aipamenaElla Thea Smith. Exploring Biology: The Science of Living Things. New York: Harper, Brace and World, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.