A little dirty according to CMOS. Ought to be '90s not 90's, cds not cd's. https://www.chicagomanualofstyle.org/book/ed18/part2/ch09/psec035.html https://www.c

A little dirty according to CMOS. Ought to be '90s not 90's, cds not cd's. https://www.chicagomanualofstyle.org/book/ed18/part2/ch09/psec035.html https://www.chicagomanualofstyle.org/book/ed18/part2/ch09/ps... https://www.chicagomanualofstyle.org/qanda/data/faq/topics/Punctuation/faq0051.html https://www.chicagomanualofstyle.org/qanda/data/faq/topics/P...