(1953). Gas: Report of a Productivity Team representing the British Gas Industry witch visited the United States of America in 1952. London: British Productivity Council.
Παραπομπή Chicago StyleGas: Report of a Productivity Team Representing the British Gas Industry Witch Visited the United States of America in 1952. London: British Productivity Council, 1953.
Παραπομπή MLAGas: Report of a Productivity Team Representing the British Gas Industry Witch Visited the United States of America in 1952. London: British Productivity Council, 1953.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.