National Council of Teachers of Mathematics, Aichele, D. B., & Coxford, A. F. (1994). Professional development for teachers of mathematics. NCTM.
Citação do estilo Chicago (17ª ed.)National Council of Teachers of Mathematics, Douglas B. Aichele, e Arthur F. Coxford. Professional Development for Teachers of Mathematics. Reston, VA: NCTM, 1994.
Citação MLA (9ª ed.)National Council of Teachers of Mathematics, et al. Professional Development for Teachers of Mathematics. NCTM, 1994.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.