Παραπομπή APA

Nachtrieb, N. H. (1950). Principles and practice of spectrochemical analysis.

Παραπομπή Chicago Style

Nachtrieb, Norman H. Principles and Practice of Spectrochemical Analysis. 1950.

Παραπομπή MLA

Nachtrieb, Norman H. Principles and Practice of Spectrochemical Analysis. 1950.