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Gallon Definition & Meaning - Merriam-Webster
Gallon - Wikipedia
Convert gallons to liters - Unit Converter
GALLON | definition in the Cambridge English Dictionary
Convert Gallons to Ounces - CalculateMe.com
US Gallons (US gal) - Volume Conversions - CheckYourMath
Gallon Calculator | Gallon Converter
GALLON Definition & Meaning | Dictionary.com
GALLON | English meaning - Cambridge Dictionary
Gallon - Simple English Wikipedia, the free encyclopedia