Solas agus dorchadas /
Hewitt, Sally,1949-
Ní Mhianáin, Nóirín.
Ó Mianáin, Gearalt.
Srath Feabhail, Co. Dhoire : An Clár Speisialta Tacaíochta um Shíocháin agus Athmhuintearas ; Béal Feirste : An tÁisaonad Lán-Ghaeilge, Coláiste Ollscoile Naomh Muire,
2000.
Includes index.
Originally published [in English] : London : Franklin Watts, 1998.
Light
Brightness perception