APA Edition Citation

Olson, D. R. (1970). Cognitive development: The child's acquisition of diagonality. Academic Press.

Chicago Edition Citation

Olson, David R. Cognitive Development: The Child's Acquisition of Diagonality. New York: Academic Press, 1970.

MLA Edition Citation

Olson, David R. Cognitive Development: The Child's Acquisition of Diagonality. Academic Press, 1970.

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