Cowan, R. E. (1919). A Bibliography of the Spanish Press of California, 1833-1845. San Fransisco.
Lua i Stíl Chicago (17ú heag.)Cowan, Robert Ernest. A Bibliography of the Spanish Press of California, 1833-1845. San Fransisco, 1919.
Lua MLA (8ú heag.)Cowan, Robert Ernest. A Bibliography of the Spanish Press of California, 1833-1845. San Fransisco, 1919.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.