Читать книгу The Writer's Desk Book - William Dana Orcutt - Страница 14
Use the period:
Оглавление1. After every abbreviation.
2. To set off decimal numbers from whole numbers.
3. After every complete sentence unless the sentence is interrogative or exclamatory.
4. To indicate an ellipsis, repeating the mark three or more times separated by spaces: e.g., …