LSM Course - Learn LSM at a week-long intensive in New Mexico, USA. Schedule, rates, contact information. Frames. - http://www.apachecreek.us/ranch/
Cross-indexed LSM Sign Language Translator - CD-rom with over 575 words cross-indexed in Spanish, English, Mexican Sign Language and American Sign Language. - http://www.idrt.com/ProductInfo.php?ID=46&u=4
Ethnologue LSM Entry - Information on LSM from 1996. - http://www.sil.org/ethnologue/countries/Mexi.html#MFS