United States Civil Service Commission. (1906). Instructions to applicants for post-office, customs, and custodian services in Porto Rico; post-office, customs, internal revenue, and custodian services in Hawaii; and customs service in Alaska. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States Civil Service Commission. Instructions to Applicants for Post-office, Customs, and Custodian Services in Porto Rico; Post-office, Customs, Internal Revenue, and Custodian Services in Hawaii; and Customs Service in Alaska. [Washington]: [publisher not identified], 1906.
MLA (9th ed.) CitationUnited States Civil Service Commission. Instructions to Applicants for Post-office, Customs, and Custodian Services in Porto Rico; Post-office, Customs, Internal Revenue, and Custodian Services in Hawaii; and Customs Service in Alaska. [publisher not identified], 1906.