Philippines. Bureau of Customs & Bautista, P. M. (1974). Customs procedures and customs laws annotated with special allied laws. Philippine Research Guide.
Chicago-Zitierstil (17. Ausg.)Philippines. Bureau of Customs und Pablo M. Bautista. Customs Procedures and Customs Laws Annotated with Special Allied Laws. Quezon City: Philippine Research Guide, 1974.
MLA-Zitierstil (9. Ausg.)Philippines. Bureau of Customs und Pablo M. Bautista. Customs Procedures and Customs Laws Annotated with Special Allied Laws. Philippine Research Guide, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.