Gaya APA

Gray, Eddiem M. & Tall, David O.. (). Duality, ambiguity, and flexibility: a proceptual view of simple arithmetic (No. 2. Vol. 25 March-1994). : Journal for research in mathematics education.

Gaya Chicago

Gray, Eddiem M. & Tall, David O.. Duality, ambiguity, and flexibility: a proceptual view of simple arithmetic. No. 2. Vol. 25 March-1994 : Journal for research in mathematics education, . Index Artikel.

Gaya MLA

Gray, Eddiem M. & Tall, David O.. Duality, ambiguity, and flexibility: a proceptual view of simple arithmetic. No. 2. Vol. 25 March-1994 : Journal for research in mathematics education, . Index Artikel.

Gaya Turabian

Gray, Eddiem M. & Tall, David O.. Duality, ambiguity, and flexibility: a proceptual view of simple arithmetic. No. 2. Vol. 25 March-1994 : Journal for research in mathematics education, . Index Artikel.