In order to determine whether differences in choice of ethnic self-referent by Mexican-Americans reflect differences in ethnic identity and attitudes toward their culture, questionnaires were distributed among Mexican-Americans living in San Antonio. The measurable cultural attitude was that toward language, since to the Mexican-American Spanish is the primary symbol of loyalty. The questionnaire contained 14 attitudinal statements about language (Spanish, English, and Tex-Mex--a regional Spanish dialect), demographic information, and a list of five self-referents. Analysis of the 160 completed surveys revealed that 13 subjects identified themselves as "Mexicano," 68 as "Mexican-American," 18 as "Chicano," 12 as "Latin," and 39 as "American of Mexican descent." There were significant differences in attitudes among the various self-referent groups, although central among the common features was a loyalty to Spanish as part of the ethnic culture. A list of references, a table listing 14 linguistic attitude statements, and a table of data analysis conclude this paper. (JM)