Παραπομπή APA

(1961). Specification for cable covers concrete and earthenware. London: British Standards Institution.

Παραπομπή Chicago Style

Specification for Cable Covers Concrete and Earthenware. London: British Standards Institution, 1961.

Παραπομπή MLA

Specification for Cable Covers Concrete and Earthenware. London: British Standards Institution, 1961.

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