APA استشهاد

Downard, K. (2007). Mass spectrometry: :a foundation course. Royal society of chemistry.

استشهاد بنمط شيكاغو

Downard, K. Mass Spectrometry: :a Foundation Course. UK: Royal society of chemistry, 2007.

MLA استشهاد

Downard, K. Mass Spectrometry: :a Foundation Course. Royal society of chemistry, 2007.