APA引文

Philippines. Bureau of Customs & Philippine Researcg Guide. Customs regulations and rulings. PRG.

Chicago Style (17th ed.) Citation

Philippines. Bureau of Customs and Philippine Researcg Guide. Customs Regulations and Rulings. Quezon City: PRG.

MLA引文

Philippines. Bureau of Customs and Philippine Researcg Guide. Customs Regulations and Rulings. PRG.

警告：這些引文格式不一定是100％准確.