Singh, A., & Ward, O. P. (2004). Applied bioremediation and phytoremediation. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Singh, Ajay, agus Owen P. Ward. Applied Bioremediation and Phytoremediation. Berlín: Springer-Verlag, 2004.
Lua MLA (9ú heag.)Singh, Ajay, agus Owen P. Ward. Applied Bioremediation and Phytoremediation. Springer-Verlag, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.