Rosenberg, M. T. (1999). The handy geography answer book. Visible Ink Press.
Cita Chicago Style (17a ed.)Rosenberg, Matthew T. The Handy Geography Answer Book. Detroit, MI: Visible Ink Press, 1999.
Cita MLA (9a ed.)Rosenberg, Matthew T. The Handy Geography Answer Book. Visible Ink Press, 1999.
Precaución: Estas citas no son 100% exactas.