Hattingh, J. T.
Universal stress sag chart for power line computations - 1st ed. - London Black & Son 1936 - xii. 74 p. ill.
Electric lines
623.19 / HAT/1936
Universal stress sag chart for power line computations - 1st ed. - London Black & Son 1936 - xii. 74 p. ill.
Electric lines
623.19 / HAT/1936