APA (7th ed.) Citation

United States. Department of the Treasury. (1921). List of forms, records, laws, and regulations pertaining to Internal Revenue Service in use in collectors' offices; supplement to Internal Revenue manual for information and guidance of collectors and their employees. GPO.

Chicago Style (17th ed.) Citation

United States. Department of the Treasury. List of Forms, Records, Laws, and Regulations Pertaining to Internal Revenue Service in Use in Collectors' Offices; Supplement to Internal Revenue Manual for Information and Guidance of Collectors and Their Employees. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

United States. Department of the Treasury. List of Forms, Records, Laws, and Regulations Pertaining to Internal Revenue Service in Use in Collectors' Offices; Supplement to Internal Revenue Manual for Information and Guidance of Collectors and Their Employees. GPO, 1921.