APA (7th ed.) Citation
Schleicher, A. (2015). Schools for 21st-century learners: Strong leaders, confident teachers, innovative approaches. OECD.
Chicago Style (17th ed.) Citation
Schleicher, Andreas. Schools for 21st-century Learners: Strong Leaders, Confident Teachers, Innovative Approaches. Paris, [France]: OECD, 2015.
MLA (9th ed.) Citation
Schleicher, Andreas. Schools for 21st-century Learners: Strong Leaders, Confident Teachers, Innovative Approaches. OECD, 2015.
Warning: These citations may not always be 100% accurate.