Philippines. Bureau of Customs. (2010). Rules and Regulations to implement CAO No.4 on Establishing an Enhanced Customs Transit System with the use of Global Positioning (GSP) Technology. Philippine Daily Inquirer.
Chicago Style (17th ed.) CitationPhilippines. Bureau of Customs. "Rules and Regulations to Implement CAO No.4 on Establishing an Enhanced Customs Transit System with the Use of Global Positioning (GSP) Technology." Philippine Daily Inquirer 2010.
MLA (9th ed.) CitationPhilippines. Bureau of Customs. "Rules and Regulations to Implement CAO No.4 on Establishing an Enhanced Customs Transit System with the Use of Global Positioning (GSP) Technology." Philippine Daily Inquirer, 2010.
Warning: These citations may not always be 100% accurate.