APA (7th ed.) Citation

Scoates, D. (1920). Farm gas engine and tractor laboratory manual (2d ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Scoates, Daniels. Farm Gas Engine and Tractor Laboratory Manual. 2d ed. College Station, Tex.: [publisher not identified], 1920.

MLA (9th ed.) Citation

Scoates, Daniels. Farm Gas Engine and Tractor Laboratory Manual. 2d ed. [publisher not identified], 1920.