Bobby Seale, 1968, Random House Pages 79-82, hardcover
"The Red Book became a key thing with the Cultural Revolution that was going on in China, and Huey said, 'You know what? I know how we can make some money to buy some guns.' . . . We went over to the China Book Store in San Francisco and we bought up two batches of the Red Book. . . . and we sold them motherfuckers at Cal campus some Red Books. . . . and the next thing I knew, we had the money to buy two shotguns."
[The "Red Book" is "Quotations of Chairman Mao."]