Karen Hartley; Chris MacRo. (1999). Snail (Bug Books Series) (Big.). Heinemann/Raintree.
芝加哥风格引文Karen Hartley; Chris MacRo. Snail (Bug Books Series). Big. Heinemann/Raintree, 1999.
MLA引文Karen Hartley; Chris MacRo. Snail (Bug Books Series). Big. Heinemann/Raintree, 1999.
警告：这些引文格式不一定是100％准确.