Prager, M. Nondestructive Evaluation of Utilities and Pipelines. SPIE Digital Library.
Cita Chicago (17th ed.)Prager, Martin. Nondestructive Evaluation of Utilities and Pipelines. SPIE Digital Library.
Cita MLA (9th ed.)Prager, Martin. Nondestructive Evaluation of Utilities and Pipelines. SPIE Digital Library.
Atenció: Aquestes cites poden no estar 100% correctes.