Παραπομπή σε μορφή APA (7η εκδ.)
International Congress on Man and Soil at the Third Millennium (3rd : 2000 : Valencia, Spain), European Society for Soil Conservation (ESSC), & Rubio Jose L. (2000). Key notes: Man and soil at the third Millennium. European Society for Soil Conservation (ESSC).
Παραπομπή σε μορφή Chicago (17η εκδ.)
International Congress on Man and Soil at the Third Millennium (3rd : 2000 : Valencia, Spain), European Society for Soil Conservation (ESSC), και Rubio Jose L. Key Notes: Man and Soil at the Third Millennium. European Society for Soil Conservation (ESSC), 2000.
Παραπομπή σε μορφή MLA (9th εκδ.)
International Congress on Man and Soil at the Third Millennium (3rd : 2000 : Valencia, Spain), et al. Key Notes: Man and Soil at the Third Millennium. European Society for Soil Conservation (ESSC), 2000.
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