Primary federal entity for collecting and analyzing data related to education in the U.S. and other nations. NCES is located within the U.S. Department of Education and the Institute of Education Sciences.

Provides information on a variety of educational topics, from educational attainment and school enrollment, to school costs and financing.

Data from hundreds of surveys that present a portrait of gender, income and rural/urban inequalities in education attendance, progression, completion, and attainment in many countries.

Cross-nationally comparable statistics on education, science and technology, culture, and communication for more than 200 countries and territories.

Purdue University guide to APA documentation

University of Wisconsin guide to APA Style documentation