Citazione APA

Barber, R. (2016). Research and extension to promote the sustainability of the basic gratns system in the slopes in the area of El Salvador.

Stile di citazione Chicago

Barber, Richard. Research and Extension to Promote the Sustainability of the Basic Gratns System in the Slopes in the Area of El Salvador. 2016.

Citazione MLA

Barber, Richard. Research and Extension to Promote the Sustainability of the Basic Gratns System in the Slopes in the Area of El Salvador. 2016.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.