APA aipamena

FAO. (1988). FAO conservation guide N.13.3: Watershed management field manual: slope treatment measures and practices. Rome: FAO.

Chicago Style aipamena

FAO. FAO Conservation Guide N.13.3: Watershed Management Field Manual: Slope Treatment Measures and Practices. Rome: FAO, 1988.

MLA aipamena

FAO. FAO Conservation Guide N.13.3: Watershed Management Field Manual: Slope Treatment Measures and Practices. Rome: FAO, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.