Elementary trigonometry
Durell, C. V.
Elementary trigonometry [Text] Durell, C. V. jt.au. - London Bell 1961 - xvi,288 p. xxiv p. diagrs., 20 cm.
Topology
514 / DUR
Elementary trigonometry [Text] Durell, C. V. jt.au. - London Bell 1961 - xvi,288 p. xxiv p. diagrs., 20 cm.
Topology
514 / DUR