APA (7th ed.) Citation

Sarmiento, D. F. (1840). Lectura gradual. [s.n.].

Chicago Style (17th ed.) Citation

Sarmiento, Domingo Faustino. Lectura Gradual. [s.l.]: [s.n.], 1840.

MLA (9th ed.) Citation

Sarmiento, Domingo Faustino. Lectura Gradual. [s.n.], 1840.

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