In the Monsters sections (that seems to be mostly ordered alphabetically) True Dragons is located between Dinosaurs and Gargoyles. True Dragons seems to be sorted as if the entry previously had been named "Dragons". There's at least two possible fixes for this
Since the True Dragons entry also contains Dream Dragons restore Dragons as the name of the entry. This would imply also removing True Dragons from the Alphabetical Listing and adding Dragons to the same.
Move the "True Dragons" entry to its correct location after Sky Bulls
I would personally recommend #1 since it makes it much easier to locate the "Dragons" entry in the book