The Internet Archive discovers and captures web pages through many different web crawls. At any given time several distinct crawls are running, some for months, and some every day or longer. View the web archive through the Wayback Machine.
The Wayback Machine - https://web.archive.org/web/20150915115219/https://books.google.com/books?id=89KX2RC6Gx0C&pg=PA154&dq=Mexican+vowels&client=firefox-a
books.google.com - This encyclopedic text focuses on the nature of Hispanic dialects, the spread of Spanish, and contemporary Spanish dialects in the Americas....https://books.google.com/books/about/Spanish_in_the_Americas.html?hl=lv&id=89KX2RC6Gx0C&utm_source=gb-gplus-shareSpanish in the Americas