APA (7th ed.) Citation

Armstrong, F. (1957). Timbers for flooring (Bulletin No. 40.). Her Majesty's Stationery Office.

Chicago Style (17th ed.) Citation

Armstrong, F.H. Timbers for Flooring. Bulletin No. 40. London: Her Majesty's Stationery Office, 1957.

MLA (9th ed.) Citation

Armstrong, F.H. Timbers for Flooring. Bulletin No. 40. Her Majesty's Stationery Office, 1957.

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