Chen, C. (2011). Public Elementary and Secondary School Student Enrollment and Staff Counts from the Common Core of Data: School Year 2009-10. First Look. NCES 2011-347.
Cita Chicago Style (17a ed.)Chen, Chen-Su. Public Elementary and Secondary School Student Enrollment and Staff Counts from the Common Core of Data: School Year 2009-10. First Look. NCES 2011-347. 2011.
Cita MLA (9a ed.)Chen, Chen-Su. Public Elementary and Secondary School Student Enrollment and Staff Counts from the Common Core of Data: School Year 2009-10. First Look. NCES 2011-347. 2011.
Precaución: Estas citas no son 100% exactas.