APA
Stirling C., Building Research Establishment, . (2001). Level external thresholds: reducing moisture penetration and thermal bridging. London: CRC Ltd.
Chicago
Stirling Charles, Building Research Establishment, . 2001. Level external thresholds: reducing moisture penetration and thermal bridging. London: CRC Ltd.
Harvard
Stirling C., Building Research Establishment, . (2001). Level external thresholds: reducing moisture penetration and thermal bridging. London: CRC Ltd.
MLA
Stirling Charles, Building Research Establishment, . Level external thresholds: reducing moisture penetration and thermal bridging. London: CRC Ltd. 2001.