This is a valuable and practical book on electrical wiring, published in 1984 as the 13th edition by Richter Schwan. It is a must-have for anyone interested in the topic of electrical engineering, and would make a great addition to any collection of technical literature. The book is in good condition and contains valuable information on electrical systems, wiring techniques, and troubleshooting methods. It is a great resource for professionals, students, or anyone looking to learn more about electrical wiring. 685 pages