Mexico - Visa requirements for visit.

I tried to get information from mexico embassy web site but could not get a right answer. I am green card holder in US, citizen of pakistan, do i need a visa to visit mexico for pleasure for about a week?
thanks for the help.

Citizens of Andorra, Argentina, Australia, Austria, Belgium, Canada, Chile, Costa Rica, the Czech Republic, Denmark, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Island, Israel, Italy, Japan, Liechtenstein, Luxembourg, Monaco, Netherlands, New Zealand, Norway, Poland, Portugal, Puerto Rico, San Marino, Singapore, Slovenia, Spain, South Korea, Sweden, Switzerland, United States of America, Uruguay or Venezuela, don’t need a visa to enter Mexico, although you must present a valid passport and fill out an immigration form for tourists and business trips, which can be obtained in travel agencies, airlines or at the point where you enter Mexico.

Here is a link to the system that many airlines use to determine entry requirements for their passengers:

https://www.delta.com/planning_reservations/plan_flight/international_travel_information/visa_passport_information/index.jsp

Input:

Citizenship: Pakistan
Alien Resident of: USA
Destination Country: Mexico

and click "Go".

Directly from the embassy website:

Permanent legal residents of the US and Canada

All legal permanent residents of Canada and the United Sates, regardless of their nationality, if in possession of a so-called green card (now they are pink), or its Canadian equivalent, do not have to go through the process of applying to Mexico City for their entry permit nor do they need the stamp on their passports. They can be issued the tourist card on board the aircraft or at the port of entry to be able to travel to Mexico as tourists, in transit, or for short business trips.

THEY MUST CARRY WITH THEM THEIR VALID PASSPORT AND THEIR GREEN OR PINK PERMANENT RESIDENT CARD ISSUED BY THE U.S.A. GOVERNMENT OR THE CANADIAN EQUIVALENT.

http://portal.sre.gob.mx/was_eng/index.php?option=displaypage&Itemid=55&op=page&SubMenu=

Still... Mexico is... Mexico, I'd call to confirm.

Thanks for all the replies, i will call to confirm but seems like i will be okay for a short trip.