"gray, charles s. "
steel designer's manual: / charles.s. gray - 4 ed. - uk : crosby lockwood 1972. - "xiii, 1092p.; 25 cm."
0-00-383202-3
steel designer's manual: / charles.s. gray - 4 ed. - uk : crosby lockwood 1972. - "xiii, 1092p.; 25 cm."
0-00-383202-3