In 2 vols. - '... cover[s] the Electrical Principles syllabuses for the City & Guilds 200/231 (500 series) Craft Studies Courses in engineering' - note.
With numerical answers.
Electrical craft principles by J. F. Whitfield. ISBN 0901223336. Published by Peregrinus in 1974. Publication and catalogue information, links to buy online and reader comments.