Cita APA (7th ed.)

Umali, D. L. (1989). Agricultural technology for small farmers. Manila Bulletin.

Cita Chicago (17th ed.)

Umali, Dioscoro L. "Agricultural Technology for Small Farmers." Manila Bulletin 1989.

Cita MLA (9th ed.)

Umali, Dioscoro L. "Agricultural Technology for Small Farmers." Manila Bulletin, 1989.