Gilbert Waldbauer. (2000). Millions of monarchs: Bunches of beetles. Cambridge, MA: Havard Univ. Press.
Dyfyniad Arddull ChicagoGilbert Waldbauer. Millions of Monarchs: Bunches of Beetles. Cambridge, MA: Havard Univ. Press, 2000.
Dyfyniad MLAGilbert Waldbauer. Millions of Monarchs: Bunches of Beetles. Cambridge, MA: Havard Univ. Press, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.