Cita APA (7a ed.)

World Book, Inc. (1990). Christmas in the Philippines: Christmas around the world from World Book. World Book.

Cita Chicago Style (17a ed.)

World Book, Inc. Christmas in the Philippines: Christmas Around the World from World Book. Chicago: World Book, 1990.

Cita MLA (8a ed.)

World Book, Inc. Christmas in the Philippines: Christmas Around the World from World Book. World Book, 1990.