APA (7th ed.) Citation

Ayres, F. (1952). Theory and problems of differential equations. McGraw-Hill.

Chicago Style (17th ed.) Citation

Ayres, Frank. Theory and Problems of Differential Equations. New York: McGraw-Hill, 1952.

MLA (9th ed.) Citation

Ayres, Frank. Theory and Problems of Differential Equations. McGraw-Hill, 1952.