Hill, E. (2009). Spot's Valentine. G.P. Putnam's Sons.
芝加哥风格引文Hill, Eric. Spot's Valentine. New York, NY: G.P. Putnam's Sons, 2009.
MLA引文Hill, Eric. Spot's Valentine. G.P. Putnam's Sons, 2009.
警告：这些引文格式不一定是100％准确.
APA引文
Hill, E. (2009). Spot's Valentine. G.P. Putnam's Sons.
芝加哥风格引文Hill, Eric. Spot's Valentine. New York, NY: G.P. Putnam's Sons, 2009.
MLA引文Hill, Eric. Spot's Valentine. G.P. Putnam's Sons, 2009.