Não informado. (2019). Environmental Engineering. Mechanical Engineering Publications.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Environmental Engineering. Bury Saint Edmunds, Inglaterra: Mechanical Engineering Publications, 2019.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Environmental Engineering. Mechanical Engineering Publications, 2019.
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