Παραπομπή σε μορφή APA (7η εκδ.)

Spikell, M. A. (1993). Teaching mathematics with manipulatives: A resource of activities for the K-12 teachers. Allyn and Bacon.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Spikell, Mark A. Teaching Mathematics with Manipulatives: A Resource of Activities for the K-12 Teachers. Boston: Allyn and Bacon, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Spikell, Mark A. Teaching Mathematics with Manipulatives: A Resource of Activities for the K-12 Teachers. Allyn and Bacon, 1993.