APA Style

Erosin and Weathering. (2007). : Pelangi.

Chicago Style

Erosin and Weathering. . : Pelangi, 2007. Text.

MLA Style

Erosin and Weathering. . : Pelangi, 2007. Text.

Turabian Style

Erosin and Weathering. : Pelangi, 2007. Print.