Frei, E. (1941). Resolution from Ravenna Mosaic Company special stockholders meeting, October 1, 1941. Saint Louis University Libraries Digitization Center.
Chicago-viite (17. p.)Frei, Emil. Resolution from Ravenna Mosaic Company Special Stockholders Meeting, October 1, 1941. Saint Louis University Libraries Digitization Center, 1941.
MLA-viite (8. p.)Frei, Emil. Resolution from Ravenna Mosaic Company Special Stockholders Meeting, October 1, 1941. Saint Louis University Libraries Digitization Center, 1941.
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