. . . . . . . "Webster's new twentieth century dictionary of the English language, unabridged. Vol. 1, A thru Microspectroscope"@en . . "Webster's new twentieth century dictionary of the English language : unabridged ; including etymologies, full pronounciations, synonyms, and an encyclopedic supplement of geographical and biographical data, scripture proper names, foreign words and phrases, practical business mathematics, abbrevations, tables of weights and measures, signs and symbols, and forms of adress. 1, A thru Microspectroscope" . "English language Dictionaries." . .