APA (7th ed.) Citation

ProQuest (Firm). (1901). Papers relating to pneumatic tubes for carrying mail matter. [publisher not identified].

Chicago Style (17th ed.) Citation

ProQuest (Firm). Papers Relating to Pneumatic Tubes for Carrying Mail Matter. Washington: [publisher not identified], 1901.

MLA (9th ed.) Citation

ProQuest (Firm). Papers Relating to Pneumatic Tubes for Carrying Mail Matter. [publisher not identified], 1901.

Warning: These citations may not always be 100% accurate.