APA aipamena

Abello, M. M. (2009). Biogas technology solves farm waste disposal problem. Agriculture.

Chicago Style aipamena

Abello, Melpha M. "Biogas Technology Solves Farm Waste Disposal Problem." Agriculture 2009.

MLA aipamena

Abello, Melpha M. "Biogas Technology Solves Farm Waste Disposal Problem." Agriculture, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.