Читать книгу THE ELEMENTS OF STYLE - William Strunk Jr. - Страница 5
2. In a series of three or more terms with a single conjunction, use a comma after each term except the last.
ОглавлениеThus write,
| red, white, and blue |
| honest, energetic, but headstrong |
| He opened the letter, read it, and made a note of its contents. |
This is also the usage of the Government Printing Office and of the Oxford University Press.
In the names of business firms the last comma is omitted, as
| Brown, Shipley and Company |
The abbreviation etc., even if only a single term comes before it, is always preceded by a comma.
