APA aipamena

Alfaro, M. d. R. (1980). Agricultural use of urban wastewater.

Chicago Style aipamena

Alfaro, María del Rosario. Agricultural Use of Urban Wastewater. 1980.

MLA aipamena

Alfaro, María del Rosario. Agricultural Use of Urban Wastewater. 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.