Gaya APA
Lukens, R, P. (1977).
1977 ANNUAL BOOK OF ASTM STANDARDS PART 27 .
Maryland:
American Society for Testing & Materials.
Gaya MLA
Lukens, Robert, P..
"1977 ANNUAL BOOK OF ASTM STANDARDS PART 27".
Maryland:
American Society for Testing & Materials,
1977.
Text.