Kathleen Weidner Zoehfeld. (2002). "Dinosaurs Big and Small (Let's-Read-and-Find-Out Science, Stage 1)". HarperCollins.
芝加哥风格引文Kathleen Weidner Zoehfeld. "Dinosaurs Big and Small (Let's-Read-and-Find-Out Science, Stage 1)". HarperCollins, 2002.
MLA引文Kathleen Weidner Zoehfeld. "Dinosaurs Big and Small (Let's-Read-and-Find-Out Science, Stage 1)". HarperCollins, 2002.
警告：这些引文格式不一定是100％准确.