Abbreviations and Signs / A Primer of Information about Abbreviations and Signs, with Classified Lists of Those in Most Common Use

by Frederick W. Hamilton

The shorter names for book sizes are usually written out;

folio, quarto, octavo.

Beyond that they are usually abbreviated by using the Arabic numeral and mo, but without a period;

12 mo, 16 mo, etc.

IX. WEIGHTS AND MEASURES.

Abbreviate the common designations of weights and measures in the metric system, as well as other symbols of measurement in common use when following a numeral;

1 m., 5 dm., 4 cm., 2 mm., c.m. (cubic meter), c.d., min. (minute), sec. (second), lb. (pound), oz. (ounce), yd., ft., in., A. (Anglestrom units), H.P. (Horse power), C. (Centigrade [Thermometer]).

X. FOOTNOTES.

Authorities cited in footnotes should be specified in the following order: