APA Style
Duff, P.McL.D.. (1994).
Holmes' principles of physical geology (Ed.4).
London:
Chapmall & Hall.
Chicago Style
Duff, P.McL.D..
Holmes' principles of physical geology.
Ed.4
London:
Chapmall & Hall,
1994.
Buku Teks.
MLA Style
Duff, P.McL.D..
Holmes' principles of physical geology.
Ed.4
London:
Chapmall & Hall,
1994.
Buku Teks.
Turabian Style
Duff, P.McL.D..
Holmes' principles of physical geology.
Ed.4
London:
Chapmall & Hall,
1994.
Buku Teks.