Não informado. (1988). Journal of Research of the National Institute of Standards and Technology. National Institute of Standards and Technology.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of Research of the National Institute of Standards and Technology. Gaithersburg, Md: National Institute of Standards and Technology, 1988.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of Research of the National Institute of Standards and Technology. National Institute of Standards and Technology, 1988.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.