Gaya APA
Stephen, , M. (1985).
Mining Subsidence Beneath PFA Disposal Lagoons at Brothrton Ings, Yorkshire .
:
Pentech Press.
Gaya MLA
Stephen, , M..
"Mining Subsidence Beneath PFA Disposal Lagoons at Brothrton Ings, Yorkshire".
:
Pentech Press,
1985.
Computer Software.