Philippines. Bureau of Customs. (1921). Revoking Special Order No. 37 as to passport requirements at Philippine ports of entry. [publisher not identified].
Chicago Style (17th ed.) CitationPhilippines. Bureau of Customs. Revoking Special Order No. 37 as to Passport Requirements at Philippine Ports of Entry. Manila, Philippines: [publisher not identified], 1921.
MLA (9th ed.) CitationPhilippines. Bureau of Customs. Revoking Special Order No. 37 as to Passport Requirements at Philippine Ports of Entry. [publisher not identified], 1921.
Warning: These citations may not always be 100% accurate.