Παραπομπή APA

Niessen , W. .. M. .. A. (2001). Current practice of gas chromatography mass spectroscopy. Marcel Dekkers Inc.

Παραπομπή Chicago Style

Niessen , W . M . A. Current Practice of Gas Chromatography Mass Spectroscopy. New York: Marcel Dekkers Inc, 2001.

Παραπομπή MLA

Niessen , W . M . A. Current Practice of Gas Chromatography Mass Spectroscopy. Marcel Dekkers Inc, 2001.