Chávez, J. A., Valenta, J., Schröfel, J., Hernandez, W., & Šebesta, J. (2012). ENGINEERING GEOLOGY MAPPING IN THE SOUTHERN PART OF THE METROPOLITAN AREA OF SAN SALVADOR.
استشهاد بنمط شيكاغوChávez, José A., Jan Valenta, Jan Schröfel, Walter Hernandez, و Jiří Šebesta. ENGINEERING GEOLOGY MAPPING IN THE SOUTHERN PART OF THE METROPOLITAN AREA OF SAN SALVADOR. 2012.
MLA استشهادChávez, José A., et al. ENGINEERING GEOLOGY MAPPING IN THE SOUTHERN PART OF THE METROPOLITAN AREA OF SAN SALVADOR. 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.