"Cyhoeddwyd dan nawdd Cynllun Adnoddau Cyd-bwyllgor Addysg Cymru".
Arg Saesneg gwreiddiol = Original English ed: London: Collins, 1989.
Yn cynnwys mynegai = Includes index.
Gwyddoniaeth byw by Mike Coles. Published by Gomer mewn cydweithrediad â Collins Educational in 1992. Publication and catalogue information, links to buy online and reader comments.