Roma Gans. (1996). How Do Birds Find Their Way? (Let's-Read-and-Find-Out Science 2). HarperCollins.
芝加哥风格引文Roma Gans. How Do Birds Find Their Way? (Let's-Read-and-Find-Out Science 2). HarperCollins, 1996.
MLA引文Roma Gans. How Do Birds Find Their Way? (Let's-Read-and-Find-Out Science 2). HarperCollins, 1996.
警告：这些引文格式不一定是100％准确.