APA (7th ed.) Citation

Hallagan, J. E. (2004). A Teacher's Model of Students' Algebraic Thinking about Equivalent Expressions.

Chicago Style (17th ed.) Citation

Hallagan, Jean E. A Teacher's Model of Students' Algebraic Thinking About Equivalent Expressions. 2004.

MLA (9th ed.) Citation

Hallagan, Jean E. A Teacher's Model of Students' Algebraic Thinking About Equivalent Expressions. 2004.

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