1.Use a hyphen to join two or more words serving as a single adjective before a noun: a one-way street
2.Use a hyphen with compound numbers: forty-six
3.Use a hyphen to avoid confusion or an awkward combination of letters: re-sign a petition (vs. resign from a job) 4.Use a hyphen with the prefixes ex- (meaning former), self-, all-; with the suffix -elect; between a prefix and a capitalized word; and with figures or letters: ex-husband self-assured mid-September all-inclusive mayor-elect anti-American T-shirt pre-Civil War mid-1980s ______________________________________________________________________
I think both the a.m. and AM convention are acceptable. But are probably more of a stylistic issue.
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timeasmymeasure
no subject
Date: 2010-09-01 12:24 am (UTC)1.Use a hyphen to join two or more words serving as a single adjective before a noun:
a one-way street
2.Use a hyphen with compound numbers:
forty-six
3.Use a hyphen to avoid confusion or an awkward combination of letters:
re-sign a petition (vs. resign from a job)
4.Use a hyphen with the prefixes ex- (meaning former), self-, all-; with the suffix -elect; between a prefix and a capitalized word; and with figures or letters:
ex-husband
self-assured
mid-September
all-inclusive
mayor-elect
anti-American
T-shirt
pre-Civil War
mid-1980s
______________________________________________________________________
I think both the a.m. and AM convention are acceptable.
But are probably more of a stylistic issue.