As this is being written, Ms. as a non-specific for Miss or Mrs. has not yet penetrated the sacred territory of the most cherished Miss of all -- the Contest Miss. MISS AMERICA, MISS WORLD, MISS UNIVERSE and all other Misses of sport, state, commerce, education, etc. still reign supreme.
Douglass, Richard E.
"Missing the Point,"
Word Ways: Vol. 14
, Article 6.
Available at: http://digitalcommons.butler.edu/wordways/vol14/iss2/6