Philippine Office of the President National Statistical Coordination Board. (2002). 2002 Philippine central product classification. The National Statistical Information Center.
Chicago-Zitierstil (17. Ausg.)Philippine Office of the President National Statistical Coordination Board. 2002 Philippine Central Product Classification. Makati: The National Statistical Information Center, 2002.
MLA-Zitierstil (9. Ausg.)Philippine Office of the President National Statistical Coordination Board. 2002 Philippine Central Product Classification. The National Statistical Information Center, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.