APA (7th ed.) Citation

Sandven, H., & Sangesland, S. (2015). Concentric Coiled Tubing Drilling System. NTNU.

Chicago Style (17th ed.) Citation

Sandven, Håkon, and Sigbjørn Sangesland. Concentric Coiled Tubing Drilling System. NTNU, 2015.

MLA (8th ed.) Citation

Sandven, Håkon, and Sigbjørn Sangesland. Concentric Coiled Tubing Drilling System. NTNU, 2015.

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