APA (7th ed.) Citation

Forsyth, A. R. (1959). Theory of differential equations / by A.R. Forsyth. Dover.

Chicago Style (17th ed.) Citation

Forsyth, A. R. Theory of Differential Equations / by A.R. Forsyth. Dover, 1959.

MLA (9th ed.) Citation

Forsyth, A. R. Theory of Differential Equations / by A.R. Forsyth. Dover, 1959.

Warning: These citations may not always be 100% accurate.