Riordan Rick. (2012). Serpent's Shadow. Puffin Books.
Chicagoスタイル(17版)引用形式Riordan Rick. Serpent's Shadow. England: Puffin Books, 2012.
MLA(9版)引用形式Riordan Rick. Serpent's Shadow. Puffin Books, 2012.
警告: この引用は必ずしも正確ではありません.
APA(7版)引用形式