These books often have chapters on culture groups that include information on kinship, marriage, etc.
The first two in the list (**) are the best for cultures that exist today.
Existing and Historical Cultures
Use the search box on the Library's home page OR Google Scholar (via the link on the library databases page so you can connect to UNM resources) to search for your culture group's name. Also try searching the culture group's name with the words:
OR add a more specific term related to something you want to know about the group, e.g. marriage.