Cita APA (7th ed.)

Hernǹdez David & Canal AWSOnline / YouTube. Teaching the science of welding.

Cita Chicago (17th ed.)

Hernǹdez David i Canal AWSOnline / YouTube. Teaching the Science of Welding.

Cita MLA (9th ed.)

Hernǹdez David i Canal AWSOnline / YouTube. Teaching the Science of Welding.

Atenció: Aquestes cites poden no estar 100% correctes.