APA (7th ed.) Citation

Owen, T., & Pilbeam, E. (1992). Ordnance Survey : map makers to Britain since 1791 / Tim Owen and Elaine Pilbeam: Map makers to Britain since 1791. HMSO ;.

Chicago Style (17th ed.) Citation

Owen, Tim, and Elaine Pilbeam. Ordnance Survey : Map Makers to Britain Since 1791 / Tim Owen and Elaine Pilbeam: Map Makers to Britain Since 1791. London ; Southampton: HMSO ;, 1992.

MLA (9th ed.) Citation

Owen, Tim, and Elaine Pilbeam. Ordnance Survey : Map Makers to Britain Since 1791 / Tim Owen and Elaine Pilbeam: Map Makers to Britain Since 1791. HMSO ;, 1992.

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