APA (7th ed.) Citation

(1972). Documentos internos 1972. s.n.].

Chicago Style (17th ed.) Citation

Documentos Internos 1972. s.n.], 1972.

MLA (8th ed.) Citation

Documentos Internos 1972. s.n.], 1972.

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