APA (7th ed.) Citation

Sosa Cordero, O. (1981). Romancero guaraní. Plus Ultra.

Chicago Style (17th ed.) Citation

Sosa Cordero, Osvaldo. Romancero Guaraní. Buenos Aires: Plus Ultra, 1981.

MLA (9th ed.) Citation

Sosa Cordero, Osvaldo. Romancero Guaraní. Plus Ultra, 1981.

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