Sparks, N. (2010). Dear John. Sphere, Warner Books.
芝加哥风格引文Sparks, Nicholas. Dear John. London : New York: Sphere, Warner Books, 2010.
MLA引文Sparks, Nicholas. Dear John. Sphere, Warner Books, 2010.
警告：这些引文格式不一定是100％准确.
APA引文