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Stacy Christiansen and Connie Manno
Within the body of the table and in column and row headings, units of measure and numbers normally spelled out may be abbreviated for space considerations (see 13.12, Abbreviations, Units of Measure; 17.0, Units of Measure; and 18.0, Numbers and Percentages). However, spelled-out words should not be combined with abbreviations for units of measure. For example, “First Week” or “1st wk” or “Week 1” may be used as a column heading, but not “First wk.” Abbreviations or acronyms (but not abbreviations used to indicate units of measure) should be explained in a footnote (...