Columbia subject headings:
Education, Bilingual--Research--United States.
Education, Bilingual--Study and teaching--United States.
Education, Bilingual--United States--Evaluation.
Methodology.
Harvard subject headings:
Education, Bilingual--Research--United States.
Education, Bilingual--Study and teaching--United States.
Education, Bilingual--United States--Evaluation.
Methodology.
Princeton subject headings:
Education, Bilingual--United States--Evaluation.