Hirsch, R. E. (2018). The monarchs are missing: A butterfly mystery. Millbrook Press.
Cita Chicago Style (17a ed.)Hirsch, Rebecca E. The Monarchs Are Missing: A Butterfly Mystery. Minneapolis: Millbrook Press, 2018.
Cita MLA (8a ed.)Hirsch, Rebecca E. The Monarchs Are Missing: A Butterfly Mystery. Millbrook Press, 2018.
Precaución: Estas citas no son 100% exactas.