Gilbert Waldbauer. (2000). Millions of monarchs: Bunches of beetles. Cambridge, MA: Havard Univ. Press.
Chicago Style aipamenaGilbert Waldbauer. Millions of Monarchs: Bunches of Beetles. Cambridge, MA: Havard Univ. Press, 2000.
MLA aipamenaGilbert Waldbauer. Millions of Monarchs: Bunches of Beetles. Cambridge, MA: Havard Univ. Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.