Tohutoro APA (7th ed.)
(1987). The 1987 world book year book.: The annual supplement to the world book encyclopedia (ed.). World book, Inc..
Tohutoru Kātū Chicago (17th ed.)
The 1987 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. Chicago: World book, Inc., 1987.
Tohutoro MLA (9th ed.)
The 1987 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. World book, Inc., 1987.
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