MIL-STD-18B, MILITARY STANDARD: STRUCTURAL SYMBOLS (18 SEP 1978) [S/S BY ANSI-Y10/Y14 SERIES OF DOCUMENTS, AWS, AISC, AITC, AA ACI AND ASTM]
MIL-STD-18B, MILITARY STANDARD: STRUCTURAL SYMBOLS (18 SEP 1978) [S/S BY ANSI-Y10/Y14 SERIES OF DOCUMENTS, AWS, AISC, AITC, AA ACI AND ASTM].