Cita APA (7th ed.)

Gonzalo, B. A. Grain dryers for rural areas. s.n.

Cita Chicago (17th ed.)

Gonzalo, Benito A. Grain Dryers for Rural Areas. [S.l: s.n.

Cita MLA (9th ed.)

Gonzalo, Benito A. Grain Dryers for Rural Areas. s.n.