Citação norma APA

(1989). Validating the Concrete to Abstract Instructional Sequence for Teaching Place Value to Learning Disabled Students. Monograph #20 Susan K. Peterson and Others. [microform].

Citação norma Chicago

Validating the Concrete to Abstract Instructional Sequence for Teaching Place Value to Learning Disabled Students. Monograph #20 Susan K. Peterson and Others. [microform]. 1989.

Citação norma MLA

Validating the Concrete to Abstract Instructional Sequence for Teaching Place Value to Learning Disabled Students. Monograph #20 Susan K. Peterson and Others. [microform]. 1989.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.