Παραπομπή APA

(1968). Specification for unplasticized PVC pipe for cold water services. London: British Standards Institution.

Παραπομπή Chicago Style

Specification for Unplasticized PVC Pipe for Cold Water Services. London: British Standards Institution, 1968.

Παραπομπή MLA

Specification for Unplasticized PVC Pipe for Cold Water Services. London: British Standards Institution, 1968.

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