Gaya APA

ASTM, . (2006). ASTM D 6285 - 99 (Reapproved 2005) Standard guide for locating abandoned wells . : ASTM.

Gaya MLA

ASTM, . "ASTM D 6285 - 99 (Reapproved 2005) Standard guide for locating abandoned wells". : ASTM, 2006. Diorama.