Melvin Berger. (2000). Look Out for Turtles! (Let's-Read-and-Find-Out Science 2). HarperCollins.
芝加哥风格引文Melvin Berger. Look Out for Turtles! (Let's-Read-and-Find-Out Science 2). HarperCollins, 2000.
MLA引文Melvin Berger. Look Out for Turtles! (Let's-Read-and-Find-Out Science 2). HarperCollins, 2000.
警告：这些引文格式不一定是100％准确.