Gaya APA

Plummer.Charles.C,Carlson.Diane.H,Hammersley.Lisa, . (2008,2010,2013,2016). Physical Geology (15th Edition) . : .

Gaya MLA

Plummer.Charles.C,Carlson.Diane.H,Hammersley.Lisa, . "Physical Geology (15th Edition)". : , 2008,2010,2013,2016. Text.