(2000). Fasteners 3: Standards for technical delivery conditions for bolts, screws, nuts and washers (2nd ed.). Berlin: Beuth Verlag GmbH.
Παραπομπή Chicago StyleFasteners 3: Standards for Technical Delivery Conditions for Bolts, Screws, Nuts and Washers. 2nd ed. Berlin: Beuth Verlag GmbH, 2000.
Παραπομπή MLAFasteners 3: Standards for Technical Delivery Conditions for Bolts, Screws, Nuts and Washers. 2nd ed. Berlin: Beuth Verlag GmbH, 2000.
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