Shepherd, W. 1928-. Problems and solutions : energy studies / W. Shepherd, D.W. Shepherd. - New ed. - London : Imperial College Press ; 2008. - xi, 277 p. : ill. (some col.), maps (some col.), plans ; 25 cm. Previous ed.: 2003. Includes bibliographical references. ISBN: 9781848161764 (pbk.) RM153.25 184816176X (pbk.) Subjects--Topical Terms: Power resources.