1. The document discusses the McGill Guide to uniform legal citation in Canada and the differences between the 6th and 7th editions in terms of punctuation used.
2. Case law, legislation, books, and article citations are provided as examples to show the formatting conventions of the 6th versus 7th editions of the McGill Guide.
3. Punctuation such as periods are used more frequently in the 6th edition compared to the 7th edition, which uses almost no periods in citations.