Frogs and toads have a lot in common. They are both members of the order Anura, they both reproduce in water, and they even look alike. It can be pretty easy to get them mixed up. Here are some hints to help you tell frogs (family Ranidae) and toads (family Bufonidae) apart.
Michael E. Dorcas and J. Whitfield Gibbons. Frogs and Toads of the Southeast. University of Georgia Press, 2008: Page 7