Não informado. (2023). Rock Products and Building Materials. Maclean Hunter.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Rock Products and Building Materials. Chicago, Ill: Maclean Hunter, 2023.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Rock Products and Building Materials. Maclean Hunter, 2023.
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