Hall, H.S. Knight, S.R.
Elementary trigonometry /H.S. Hall, S.R. Knight - 4th ed. - London Macmillan 1927 - xv, 415 p.
236555
516.24 / HAL
Elementary trigonometry /H.S. Hall, S.R. Knight - 4th ed. - London Macmillan 1927 - xv, 415 p.
236555
516.24 / HAL