Gray, D. L., & Smith, A. E. (2007). Case studies in 21st century school administration: Addressing challenges for educational leadership. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Gray, David L., agus Agnes E. Smith. Case Studies in 21st Century School Administration: Addressing Challenges for Educational Leadership. Thousand Oaks: Sage Publications, 2007.
Lua MLA (9ú heag.)Gray, David L., agus Agnes E. Smith. Case Studies in 21st Century School Administration: Addressing Challenges for Educational Leadership. Sage Publications, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.