APA (7th ed.) Citation

Gentry, J. R. (2006). Breaking the code: The new science of beginning reading and writing. Heinemann.

Chicago Style (17th ed.) Citation

Gentry, J. Richard. Breaking the Code: The New Science of Beginning Reading and Writing. Portsmouth, NH: Heinemann, 2006.

MLA (9th ed.) Citation

Gentry, J. Richard. Breaking the Code: The New Science of Beginning Reading and Writing. Heinemann, 2006.