World Book, Inc. (1990). Christmas in the Philippines: Christmas around the world from World Book. World Book.
Chicago-referens (17:e uppl.)World Book, Inc. Christmas in the Philippines: Christmas Around the World from World Book. Chicago: World Book, 1990.
MLA-referens (8:e uppl.)World Book, Inc. Christmas in the Philippines: Christmas Around the World from World Book. World Book, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.