Walls, C. (2011). Spring in action (3rd ed.). Manning.
芝加哥风格引文Walls, Craig. Spring in Action. 3rd ed. Shelter Island: Manning, 2011.
MLA引文Walls, Craig. Spring in Action. 3rd ed. Manning, 2011.
警告：这些引文格式不一定是100％准确.
APA引文
Walls, C. (2011). Spring in action (3rd ed.). Manning.
芝加哥风格引文Walls, Craig. Spring in Action. 3rd ed. Shelter Island: Manning, 2011.
MLA引文Walls, Craig. Spring in Action. 3rd ed. Manning, 2011.