World Book, Inc. (1990). Christmas in the Philippines: Christmas around the world from World Book. World Book.
Citace podle Chicago (17th ed.)World Book, Inc. Christmas in the Philippines: Christmas Around the World from World Book. Chicago: World Book, 1990.
Citace podle MLA (8th ed.)World Book, Inc. Christmas in the Philippines: Christmas Around the World from World Book. World Book, 1990.
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