Here is a page link for information concerning the different types of visas and their requirements. The Internet is the best place to start your information search, followed by a personal visit to your closest customs and immigration office. With information from the Internet, you will be better prepared when you visit the C&I office.
Consulate General of Mexico - Visas
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Consulate General of Mexico - Visas)
You will need to copy and paste (Consulate General of Mexico - Visas) into your search engine (Google, Yahoo, etc) as the URL address will not dispay in the posted text.