Code of Federal regulations.
Title 21:
[Food and drugs] :
Containing a codification of documents of general applicability and future effect as of January 1, 1968 : with ancillaries.
Published by the Office of the federal Register, National Archives and Records Service, General Services Administration, as a special edition of the federal Register pursuant to section 11 of the Federal Register act as amended.
APA Citation
United States. Office of the Federal Register. (1968). Code of Federal regulations: Containing a codification of documents of general applicability and future effect as of January 1, 1968 : with ancillaries. [Washington, D.C.: Govt. Print. Office.
MLA Citation
United States. Office of the Federal Register. Code of Federal Regulations: Containing a Codification of Documents of General Applicability And Future Effect As of January 1, 1968 : With Ancillaries. [Washington, D.C.: Govt. Print. Office, 1968.
Warning: These citations may not always be complete (especially for serials).