Lua APA (7ú heag.)
TROHANIS, P. (1991). AN INTRODUCTION TO PL 99-457 AND THE NATIONAL POLICY AGENDA FOR SERVING YOUNG CHILDREN WITH SPECIAL NEEDS AND THEIR FAMILIES. EN: POLICY IMPLEMENTATION AND PL 99-457. PAUL H.BROOKES.
Lua i Stíl Chicago (17ú heag.)
TROHANIS, P.L. AN INTRODUCTION TO PL 99-457 AND THE NATIONAL POLICY AGENDA FOR SERVING YOUNG CHILDREN WITH SPECIAL NEEDS AND THEIR FAMILIES. EN: POLICY IMPLEMENTATION AND PL 99-457. Londres: PAUL H.BROOKES, 1991.
Lua MLA (9ú heag.)
TROHANIS, P.L. AN INTRODUCTION TO PL 99-457 AND THE NATIONAL POLICY AGENDA FOR SERVING YOUNG CHILDREN WITH SPECIAL NEEDS AND THEIR FAMILIES. EN: POLICY IMPLEMENTATION AND PL 99-457. PAUL H.BROOKES, 1991.
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