APA (7th ed.) Citation

Joy, C. I. H. (1998). GPS assisted helicopter photogrammetry for highway profiling.

Chicago Style (17th ed.) Citation

Joy, Christopher Iain Harold. GPS Assisted Helicopter Photogrammetry for Highway Profiling. 1998.

MLA (9th ed.) Citation

Joy, Christopher Iain Harold. GPS Assisted Helicopter Photogrammetry for Highway Profiling. 1998.

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