Ban goc (Tiếng Anh)

MEMOIR OF THE PROPOSED TERRITORY OF ARIZONA. BY SYLVESTER MOWRY, U. S. A., DELEGATE ELECT. WASHINGTON: HENRY POLKINHORN, PRINTER. 1857. "The NEW TERRITORY of ARIZONA, better known as the GADSDEN PURCHASE, lies between the thirty-first and thirty-third parallels of latitude, and is bounded on the north by the Gila River, which separates it from the territory of New Mexico; on the east by the Rio Bravo del Norte, (Rio Grande), which separates it from Texas;