The Century Dictionary, An Encyclopedic Lexicon of the English Language, Volume V, Hoop - I.J.K.L, prepared under the superintendence of William Dwight Whitney revised and enlarged under the superintendence of Benjamin E. Smith (1914)
The Century Dictionary, An Encyclopedic Lexicon of the English Language, Volume VI, M.N.O, prepared under the superintendence of William Dwight Whitney revised and enlarged under the superintendence of Benjamin E. Smith (1914)
The Century Dictionary, An Encyclopedic Lexicon of the English Language, Volume VII, P.Q, prepared under the superintendence of William Dwight Whitney revised and enlarged under the superintendence of Benjamin E. Smith (1914)
The Century Dictionary, An Encyclopedic Lexicon of the English Language, Volume VIII, R - Simulant, prepared under the superintendence of William Dwight Whitney revised and enlarged under the superintendence of Benjamin E. Smith (1914)
The Century Dictionary, An Encyclopedic Lexicon of the English Language, Volume X, Tola - U.V.W.XYZ, prepared under the superintendence of William Dwight Whitney revised and enlarged under the superintendence of Benjamin E. Smith (1914)