Constitución ... 1920-1921
Published: 1925
Place of publication: México, D.F
Language: spa
Number of pages: 24
Subjects: Labor unions
Notes: Cover-title: C.R.O.M.

Microfilm. New York, N.Y., Columbia University Libraries, 1997. 1 microfilm reel, 35 mm.

Filmed; NEH Project (FMEST); 1997.