Villegas Osorio, J. G. (1995). Water quality assessment in the Reventado's watershed, Cartago, Costa Rica, oriented to the development of indicators of sustainability.
استشهاد بنمط شيكاغوVillegas Osorio, Javier G. Water Quality Assessment in the Reventado's Watershed, Cartago, Costa Rica, Oriented to the Development of Indicators of Sustainability. 1995.
MLA استشهادVillegas Osorio, Javier G. Water Quality Assessment in the Reventado's Watershed, Cartago, Costa Rica, Oriented to the Development of Indicators of Sustainability. 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.