Não informado. (2004). Environmental & Engineering Geoscience. Association of Engineering Geologists.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Environmental & Engineering Geoscience. College Station, Tex: Association of Engineering Geologists, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Environmental & Engineering Geoscience. Association of Engineering Geologists, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.