Gaya APA

ASTM, . (2006). ASTM D 6639 - 01 Standard guide for using the frequency domain electromagnetic merthod for subsurface investigations . : ASTM.

Gaya MLA

ASTM, . "ASTM D 6639 - 01 Standard guide for using the frequency domain electromagnetic merthod for subsurface investigations". : ASTM, 2006. Diorama.