Heathcote, Martin J. The J & P transormer book : a practical technology of the power transformer / Martin J. Heathcote. - 12th ed. - Oxford : Newness, 1998. - xviv, 945 p. ; 25 cm. Includes bibliographica references and index. open access. ISBN: 0750611588 LCCN: 991611588 Subjects--Topical Terms: Electric transformers.