Bray, M., & Bray, M. (2000). Double-shift schooling: Design and operation for cost-effectiveness (2nd ed.). Commonwealth Secretariat.
Cita Chicago (17th ed.)Bray, Mark, i Mark Bray. Double-shift Schooling: Design and Operation for Cost-effectiveness. 2nd ed. London: Commonwealth Secretariat, 2000.
Cita MLA (9th ed.)Bray, Mark, i Mark Bray. Double-shift Schooling: Design and Operation for Cost-effectiveness. 2nd ed. Commonwealth Secretariat, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.