Groman, J. (1995). The world book encyclopedia: V.16.: Q - R. World Book International.
Citación estilo ChicagoGroman, Jeff. The World Book Encyclopedia: V.16.: Q - R. World Book International, 1995.
Cita MLAGroman, Jeff. The World Book Encyclopedia: V.16.: Q - R. World Book International, 1995.
Warning: These citations may not always be 100% accurate.