Lobel, A. (2011). Days with frog and toad: I can read level 2. HarperCollins.
Chicago Style (17th ed.) CitationLobel, Arnold. Days with Frog and Toad: I Can Read Level 2. New York: HarperCollins, 2011.
MLA引文Lobel, Arnold. Days with Frog and Toad: I Can Read Level 2. HarperCollins, 2011.
警告：這些引文格式不一定是100％准確.