APA (7th ed.) Citation

Carlson, A. D. (1995). Letters, Numbers, Shapes, & Colors: Getting a Grasp on Concept Books.

Chicago Style (17th ed.) Citation

Carlson, Ann D. Letters, Numbers, Shapes, & Colors: Getting a Grasp on Concept Books. 1995.

MLA (9th ed.) Citation

Carlson, Ann D. Letters, Numbers, Shapes, & Colors: Getting a Grasp on Concept Books. 1995.

Warning: These citations may not always be 100% accurate.