HUGHES J H & MARTIN K F, . (1980). BASIC ENGINEERING MECHANICS. : E.L.B.S. & MACMILLAN.
HUGHES J H & MARTIN K F, . 1980. BASIC ENGINEERING MECHANICS. : E.L.B.S. & MACMILLAN.
HUGHES J H & MARTIN K F, . BASIC ENGINEERING MECHANICS. : E.L.B.S. & MACMILLAN. 1980.