http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
207 [i.e., 209] pages, 1 unnumbered leaf of plates : map, portrait ; 23 cm.
At the bottom of pages [18]-34: Proyecto de Investigación Sociolingüística de y para México.
Includes bibliographical references (pages [208-209]).