Rhif y cyhoeddwr = Publisher's number: SCH00307BMIT-B-P.
Ar dop y dudalen deitl = At head of t.p.: Environment Agency.
Gweler hefyd: Adroddiad gwyddoniaeth = See also: Science report: ISBN 9781844327126.
Astudiaeth rhychwantu ymchwil i ynni. Published by Asiantaeth yr Amgylchedd in 2007. Publication and catalogue information, links to buy online and reader comments.