Anita Ganeri. (1999). The Children's Encyclopedia of Heaven (illustrated edition.). Houghton Mifflin Harcourt.
Cita Chicago (17th ed.)Anita Ganeri. The Children's Encyclopedia of Heaven. illustrated edition. Houghton Mifflin Harcourt, 1999.
Cita MLA (9th ed.)Anita Ganeri. The Children's Encyclopedia of Heaven. illustrated edition. Houghton Mifflin Harcourt, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.