Predating that is Ludwell Denny's "We Fight For Oil" from 1928. I have a physical copy of this book. Its mere existence says a lot, and still does ... https://

Predating that is Ludwell Denny's "We Fight For Oil" from 1928. I have a physical copy of this book. Its mere existence says a lot, and still does ... https://www.yamaguchy.com/library/denny/denny_index.html https://www.yamaguchy.com/library/denny/denny_index.html