Singleton, A. D. (2010). Educational opportunity: The geography of access to higher education. Ashgate Pub. Co..
Cita Chicago (17th ed.)Singleton, Alexander D. Educational Opportunity: The Geography of Access to Higher Education. Burlington, VT: Ashgate Pub. Co., 2010.
Cita MLA (9th ed.)Singleton, Alexander D. Educational Opportunity: The Geography of Access to Higher Education. Ashgate Pub. Co., 2010.
Atenció: Aquestes cites poden no estar 100% correctes.