APA استشهاد

Bradl, H. B. (2005). Heavy metals in the environment. Elsevier.

استشهاد بنمط شيكاغو

Bradl, H B. Heavy Metals in the Environment. Amsterdam: Elsevier, 2005.

MLA استشهاد

Bradl, H B. Heavy Metals in the Environment. Elsevier, 2005.