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Introduction to Differential Equations, Richard C. DiPrima,William E. Boyce, 978

Introduction to Ordinary Differential Equations

Introduction to Differential - Textbook, by William E. Boyce; - Acceptable

Introduction to Differential Equati..., Richard C. DiPr

ELEM.DIFFERENTIAL EQUATIONS C by William E. Boyce; Richard C. DiPrima

An Introduction to Ordinary Differential Equations

Introduction to Partial Differential Equations by Don Greenspan (1961 hardcover)