APA (7th ed.) Citation

Altman, D., & Bland, J. (2011). Statistics notes: Brackets (parentheses) in formulas.

Chicago Style (17th ed.) Citation

Altman, D., and J. Bland. Statistics Notes: Brackets (parentheses) in Formulas. 2011.

MLA (9th ed.) Citation

Altman, D., and J. Bland. Statistics Notes: Brackets (parentheses) in Formulas. 2011.

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