APA (7th ed.) Citation

ProQuest (Firm). (1909). Proposed government testing machine. [publisher not identified].

Chicago Style (17th ed.) Citation

ProQuest (Firm). Proposed Government Testing Machine. Washington: [publisher not identified], 1909.

MLA (9th ed.) Citation

ProQuest (Firm). Proposed Government Testing Machine. [publisher not identified], 1909.

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