Não informado. (1959). British journal of non-destructive testing. Non-Destructive Testing Society of Great Britain.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. British Journal of Non-destructive Testing. Leigh-on-Sea, Inglaterra: Non-Destructive Testing Society of Great Britain, 1959.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. British Journal of Non-destructive Testing. Non-Destructive Testing Society of Great Britain, 1959.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.