Frye, Curtis D. Microsoft excel 2013: step by step / Curtis D. Frye - Sebastopol,California : ,O'Reilly Media 2013. - xvi,484 p. : ill. ; 24 cm. ISBN: 9780735669390 Subjects--Topical Terms: Electronic spreadsheets. LC Class. No.: HF5548.4.M523 / .F73 2013