books.google.com - Third down, four yards to gain! The referee trotted out of the scrimmage line and blew his whistle; the Hillton quarter-back crouched again behind the big center; the other backs scurried to their places as though for a kick. "9 - 6 - 12!" calle...https://books.google.com/books/about/Behind_the_Line.html?id=YdW-MY_Yv78C&utm_source=gb-gplus-shareBehind the Line
