Gaya APA
Diessel.Claus.F.K, . (1992).
Coal - Bearing Depositional Systems (E-Book) .
New Delhi:
Springer Verlag Berlin Heidelberg.
Gaya MLA
Diessel.Claus.F.K, .
"Coal - Bearing Depositional Systems (E-Book)".
New Delhi:
Springer Verlag Berlin Heidelberg,
1992.
E-book.