Philippines. Civil Service Commission. (2008). 2008 memorandum circulars. Civil Service Commission.
Chicago-referens (17:e uppl.)Philippines. Civil Service Commission. 2008 Memorandum Circulars. Metro Manila: Civil Service Commission, 2008.
MLA-referens (9:e uppl.)Philippines. Civil Service Commission. 2008 Memorandum Circulars. Civil Service Commission, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.