APA Style

Ludman, Allan, Coch, Nicholas K.. (1982). Physical geology (1). USA: McGraw Hill.

Chicago Style

Ludman, Allan, Coch, Nicholas K.. Physical geology. 1 USA: McGraw Hill, 1982. Text.

MLA Style

Ludman, Allan, Coch, Nicholas K.. Physical geology. 1 USA: McGraw Hill, 1982. Text.

Turabian Style

Ludman, Allan, Coch, Nicholas K.. Physical geology. 1 USA: McGraw Hill, 1982. Print.