United States. Congress. House. Committee on Post Office and Post Roads & ProQuest (Firm). (1937). Classification of bills and statements of account produced by photographic or mechanical processes. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Classification of Bills and Statements of Account Produced by Photographic or Mechanical Processes. Washington: [publisher not identified], 1937.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Post Office and Post Roads and ProQuest (Firm). Classification of Bills and Statements of Account Produced by Photographic or Mechanical Processes. [publisher not identified], 1937.
Warning: These citations may not always be 100% accurate.