Subjects: HOLIDAYS; SPECIAL days
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Subjects: HOLIDAYS; DAYS; CHRISTMAS
Subjects: SOKHAN, Ali Nikou; SPECIAL days; CULTURE
Subjects: DAYS; RAINFALL frequencies
Subjects: SPECIAL days; PRESIDENTS of the United States; WASHINGTON, George, 1732-1799UNITED States
Subjects: WATER pollution; POLLUTION; HYDROLOGIC cycle
Subjects: STATISTICS; DAYS; APPLICATION software
Subjects: SPECIAL days; ORGAN donation
Subjects: WATER supply; SCARCITY; DRINKING water
Subjects: EARTH Day; SPECIAL days; TEACHING aidsUNITED States