APA (7th ed.) Citation

Richardson, K. (2011). Developing number concepts: Place value, multiplication, and division. Dale Seymour Publications.

Chicago Style (17th ed.) Citation

Richardson, Kathy. Developing Number Concepts: Place Value, Multiplication, and Division. NJ: Dale Seymour Publications, 2011.

MLA (9th ed.) Citation

Richardson, Kathy. Developing Number Concepts: Place Value, Multiplication, and Division. Dale Seymour Publications, 2011.

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