The Lionel "A Collector's Guide and History Vol IV 4 1970-1980" by McComas Tuohy is a textbook published in 1980. This hardcover book in English provides a comprehensive guide and history of Lionel trains from 1970 to 1980. Written by Tom McComas and James Tuohy, this nonfiction book is aimed at young adults and adults interested in model railroads and trains. The detailed narrative and focus on train collectors make this book a valuable resource for train enthusiasts looking to learn more about the history and development of Lionel trains during this period.