Gaya APA

ASQUITH, G., KRYGOWSKI, D. (2004). BASIC WELL LOG ANALYSIS ( Second Edition ) (2). : American Association of Petroleum Geologist.

Gaya MLA

ASQUITH, GEORGE., KRYGOWSKI, DANIEL. "BASIC WELL LOG ANALYSIS ( Second Edition )". 2 : American Association of Petroleum Geologist, 2004. Text.