Cita 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.

Chicago Style Citation

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

Cita 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.