Almost surely "Silvics of Forest Trees of the United States"
Agriculture Handbook # 271

schreef
I used it alot in the 1970s. It was a US govt printed book. It had a
green cover, hardback and thick. It was about 6" by 10". I remember a
page or two on pinyon pine showing its distribution range in the West.
It showed and talked about many trees in the US. Does anyone know the
name of this book?