Contributions [microform].
Montana Historical Society.
Helena, Mont. [etc.],
1876-19
Vol. 9 published in Missoula.
Title varies.
Vols. 1-2 contain also the society's transactions, act of incorporation, constitution, ordinances, list of officers and members; v. 3-6, its transactions and list of officers.
Sabin 50080.
Sabin Group 96.
Microfiche.