APA

CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, Green D. R., Flamer G. B., Ford M. P. & CTB/McGraw-Hill. (1971). Measurement and Piaget: proceedings. New York: McGraw-Hill.

Chicago

CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, Green Donald Ross, Flamer George B, Ford Marguerite P and CTB/McGraw-Hill. 1971. Measurement and Piaget: proceedings. New York: McGraw-Hill.

Harvard

CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, Green D. R., Flamer G. B., Ford M. P. and CTB/McGraw-Hill. (1971). Measurement and Piaget: proceedings. New York: McGraw-Hill.

MLA

CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, CTB/McGraw-Hill Conference on Ordinal Scales of Cognitive Development, Green Donald Ross, Flamer George B, Ford Marguerite P and CTB/McGraw-Hill. Measurement and Piaget: proceedings. New York: McGraw-Hill. 1971.