Cita APA (7th ed.)

(2000). Elementary & Secondary School Enrollment: Fall 1970-2008. U.S. Department of Education.

Cita Chicago (17th ed.)

Elementary & Secondary School Enrollment: Fall 1970-2008. U.S. Department of Education, 2000.

Cita MLA (9th ed.)

Elementary & Secondary School Enrollment: Fall 1970-2008. U.S. Department of Education, 2000.

Atenció: Aquestes cites poden no estar 100% correctes.