Gaya APA
ASTM, . (1990).
ASTM D 3327 - 79 Standard test methods for analysis of selected elements in waterborne oils .
:
ASTM.
Gaya MLA
ASTM, .
"ASTM D 3327 - 79 Standard test methods for analysis of selected elements in waterborne oils".
:
ASTM,
1990.
Diorama.