15 feb 1930 año - Citations

Descripción:

- Dirks, Tim. "The History of Film: The 1920s", Filmsite , AMC, <https://www.filmsite.org /20sintro.html>.
- Goodreads, Goodreads Inc, <https://www.good reads.com>.
- Ayers, Edward L, Robert D Schulzinger, Jesus F de la Teja, and Deborah Gray White. "American Anthem: Reconstruction to the Present", Holt, 2009.

Añadido al timeline:

fecha: