Crosby, T. (1973). How to play the environment game: Theo Crosby. Penguin Books.
Chicago-Zitierstil (17. Ausg.)Crosby, Theo. How to Play the Environment Game: Theo Crosby. Baltimore [u.a.]: Penguin Books, 1973.
MLA-Zitierstil (8. Ausg.)Crosby, Theo. How to Play the Environment Game: Theo Crosby. Penguin Books, 1973.
警告：這些引文格式不一定是100％准確.