APA (7th ed.) Citation

Cajori, F. (1969). An introduction to the theory of equations. Dover.

Chicago Style (17th ed.) Citation

Cajori, Florian. An Introduction to the Theory of Equations. New York: Dover, 1969.

MLA (9th ed.) Citation

Cajori, Florian. An Introduction to the Theory of Equations. Dover, 1969.

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