Gaya APA

PETTS, J, C, T, S, M. (1997). Risk based contaminated land investigation and assesment . : John Wiley & Sons.

Gaya MLA

PETTS, Judith;, CAIRNEY,, Tom;, SMITH,, Mike. "Risk based contaminated land investigation and assesment". : John Wiley & Sons, 1997. Buku.