Massachusetts. Office of the Secretary of State. (2020). [Code of Massachusetts regulations, 2019] (2019 edition.). [Office of the Secretary of the Commonwealth?].
Chicago Style (17th ed.) CitationMassachusetts. Office of the Secretary of State. [Code of Massachusetts Regulations, 2019]. 2019 edition. [Boston?]: [Office of the Secretary of the Commonwealth?], 2020.
MLA (8th ed.) CitationMassachusetts. Office of the Secretary of State. [Code of Massachusetts Regulations, 2019]. 2019 edition. [Office of the Secretary of the Commonwealth?], 2020.
Warning: These citations may not always be 100% accurate.