This volume traces the history of English in North America during the past 400 years. Sixteen leading authorities in the field consider how the vocabulary (both standard and slang), grammar, spelling, and usage in both the standard language and regional and social dialects have evolved, and examine the relationship of and interaction between British and American English. Separate chapters deal with African-American English, Canadian English and Newfoundland English. The volume also includes suggestions for further reading, a glossary of linguistic terms, and an extensive bibliography.
What happens when you have a lot of people do the job for one person - you have a lot of repetition. And still, I don't feel like I got a good look on English in North America.