APA (7th ed.) Citation

Del Prado, M. G. "309 years of History". s.n.

Chicago Style (17th ed.) Citation

Del Prado, Mariano Goyena. "309 Years of History". s.l: s.n.

MLA (9th ed.) Citation

Del Prado, Mariano Goyena. "309 Years of History". s.n.

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