APA استشهاد

Eaton( Andrew D.) et al. (2005). Standard methods for the examination of water and waste water (21.).

استشهاد بنمط شيكاغو

Eaton( Andrew D.) et al. Standard Methods for the Examination of Water and Waste Water. 21. American Public Health Association, 2005.

MLA استشهاد

Eaton( Andrew D.) et al. Standard Methods for the Examination of Water and Waste Water. 21. 2005.