Cordell, T. Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials. SPIE Digital Library.
Chicago-viite (17. p.)Cordell, Tobey. Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials. SPIE Digital Library.
MLA-viite (9. p.)Cordell, Tobey. Nondestructive Evaluation of Aging Aircraft, Airports, Aerospace Hardware, and Materials. SPIE Digital Library.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.