Columbia subject headings:
Oral tradition--Mexico--Congresses.
Popular culture--Mexico--Congresses.
Popular literature--Mexico--Congresses.
Harvard subject headings:
Oral tradition--Mexico--Congresses.
Popular culture--Mexico--Congresses.
Popular literature--Mexico--Congresses.
Princeton subject headings:
Oral tradition--Mexico--Congresses.
Popular culture--Mexico--Congresses.
Popular literature--Mexico--Congresses.