Não informado. Association of Engineering Geologists newsletter. Association of Engineering Geologists.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Association of Engineering Geologists Newsletter. Lawrence, Kan: Association of Engineering Geologists.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Association of Engineering Geologists Newsletter. Association of Engineering Geologists.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.