Travel the 1970s, what may have been the last great era of the big rigs, with the man who knows semi trucks better than anyone. Ron Adams, author of Big Rigs of the 1950s , Big Rigs of the 1960s , Mack Trucks , and 100 Years of Semi Trucks , takes readers through the decade, introducing the trucks that debuted or saw significant revamping, describing the quirks and innovations, and offering detailed information about the models, trailers, trucking...