APA (7th ed.) Citation

Artymiuk, J., & Loland, J. Top drive technology - electric PTD.

Chicago Style (17th ed.) Citation

Artymiuk, Jan, and Jens Loland. Top Drive Technology - Electric PTD.

MLA (9th ed.) Citation

Artymiuk, Jan, and Jens Loland. Top Drive Technology - Electric PTD.

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