APA (7th ed.) Citation
Gentile, E. R. (1985). Aritmética elemental. OEA.
Chicago Style (17th ed.) Citation
Gentile, Enzo R. Aritmética Elemental. Washington: OEA, 1985.
MLA (9th ed.) Citation
Gentile, Enzo R. Aritmética Elemental. OEA, 1985.
Warning: These citations may not always be 100% accurate.