Statistics unplugged

MLA

Caldwell, Sally. Statistics Unplugged. 4th ed. Belmont, CA: Wadsworth, 2013.

APA

Caldwell, S. (2013). Statistics unplugged. 4th ed. Belmont, CA: Wadsworth.

Chicago

Caldwell, Sally. Statistics Unplugged. 4th ed. Belmont, CA: Wadsworth, 2013.