Citations and annotations for 444 printed works on the Mexican American or Chicano published from 1919 to 1970 are found in this revised and enlarged bibliography. The bibliography is meant to be selective and emphasizes scholarly publications. Compared to an earlier edition, unpublished dissertations are covered more extensively and the number of contributions of Mexican scholars has been expanded significantly. Documents are indexed by descriptive term and by subject field. A list of 64 Chicano periodicals is included. An even more comprehensive third edition is planned. (JH)