Whenever a claim, defense, or counterclaim is founded upon a written instrument, the same may be pleaded according to legal effect, or may be recited at length in the pleading, or a copy may be attached to the pleading as an exhibit.
Mo. Rev. Stat. § 509.230
Pleading written instrument
Effective: 28 Aug 1943; (L. 1943 p. 353 § 55)
Official source: Missouri Revisor of Statutes. Reproduced from public-domain Missouri statutes; confirm against the official source for the current text. Not legal advice.