APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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