1. ALGEBRA 2. OPERATION FACTORING 3. NUMERICAL TRIGONOMETRIC 4. EDUCACIÓN (Topical Term)

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Work cat.: (OSt)41749: Welchons, A. M. [et.al] 8692, Algebra, Book one, Elementary course, Modern edition / A. M. Welchons; W. R. Krickenberger; Helen R. Pearson, 1970