Não informado. Thrust for educational leadership. Association of California School Administrators.
Citação do estilo Chicago (17ª ed.)Não informado. Thrust for Educational Leadership. Burlingame, Calif: Association of California School Administrators.
Citação MLA (8ª ed.)Não informado. Thrust for Educational Leadership. Association of California School Administrators.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.