Fórsaí /
Hewitt, Sally,1949-
Ní Mhianáin, Nóirín.
Ó Mianáin, Gearalt.
Béal Feirste : An tÁisaonad Lán-Ghaeilge, Coláiste Oilscoile Naomh Muire ; Srath Feabhail, Co. Dhoire : An Clár Speisialta Tacaíochta um Shíocháin agus Athmhuintearas,
2000.
Originally published [in English] : London : Franklin Watts, 1997.
Includes index.
Force and energy
Power (Mechanics)