APA Citation

(1991). Specification for installation of gas-fired forced convection air heaters for commercial and industrial space heating (2nd family gases). London: BSI.

Chicago Style Citation

Specification for Installation of Gas-fired Forced Convection Air Heaters for Commercial and Industrial Space Heating (2nd Family Gases). London: BSI, 1991.

MLA Citation

Specification for Installation of Gas-fired Forced Convection Air Heaters for Commercial and Industrial Space Heating (2nd Family Gases). London: BSI, 1991.

Warning: These citations may not always be 100% accurate.