Mo. Rev. Stat. § 359.221: Limited partners right to information.

Each limited partner has the right to:

(1) Inspect and copy any of the partnership records required to be maintained by section 359.051; and

(2) Obtain from the general partners from time to time upon reasonable demand:

(a) True and full information regarding the state of the business and financial condition of the limited partnership;

(b) Promptly after becoming available, a copy of the limited partnership's federal, state and local income tax returns for each year; and

(c) Other information regarding the affairs of the limited partnership as is just and reasonable.