Gaya APA

Ashcroft, W. (2011). A Petroleum Geologist's Guide to Seismic Reflection (E-Book) . United Kingdom: John Wiley & Sons.

Gaya MLA

Ashcroft, William. "A Petroleum Geologist's Guide to Seismic Reflection (E-Book)". United Kingdom: John Wiley & Sons, 2011. Text.