Παραπομπή APA

(1971). Specification for piping systems for petroleum refineries and petrochemical plants. London: British Standards Institution.

Παραπομπή Chicago Style

Specification for Piping Systems for Petroleum Refineries and Petrochemical Plants. London: British Standards Institution, 1971.

Παραπομπή MLA

Specification for Piping Systems for Petroleum Refineries and Petrochemical Plants. London: British Standards Institution, 1971.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.