Nurestra Senora De Blen Church

Does anyone have the mailing address for Nuestra Senora De Belen Church in Asientos, Aguascalientes? I would like to obtain a copy of the baptism certificate of my g-g-grandmother, Ciriaca Paula Marchan (b. 7-5-1790). Her parents were Juan De Dios Marchan and Maria Marzelina Gonzalez. I have tried the Mexico Yellow pages on the internet and was not able to find it. Any assistance would be appreciated. Thank you.