Cita APA (7th ed.)
(1983). The 1983 world book year book.: The annual supplement to the world book encyclopedia (ed.). World book, Inc..
Cita Chicago (17th ed.)
The 1983 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. Chicago: World book, Inc., 1983.
Cita MLA (9th ed.)
The 1983 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. World book, Inc., 1983.
Atenció: Aquestes cites poden no estar 100% correctes.