波莱 & 余洁. (2011). 垃圾车法则: Law of the garbage truck. 重庆出版社.
Chicago Style (17th ed.) Citation波莱 i 余洁. 垃圾车法则: Law of the Garbage Truck. 重庆出版社, 2011.
Cita MLA波莱 i 余洁. 垃圾车法则: Law of the Garbage Truck. 重庆出版社, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.