Elementary Partial Differential Equations by Berg & McGregor (1966 VTG HC)

Elementary Linear Algebra by Paul C. Shields 1970 HC / Vintage

Differential Equations with Applications & Historical Notes by Simmons HC 1972

Vintage 1935 Elementary Differential Equations by Lyman Kells (USNA) HC 2nd Ed

Elementary Partial Differential Equations by Berg & McGregor (1966 VTG HC)

Elementary Partial Differential Equations by Paul W. Berg, James L. McGregor HC

N. Bourbaki ~ Elements de Mathematique ~ 1947 Algebra Linear Structures Paris

Differential Equations w/ Applications & Historical Notes 1972 HC