Vincent, Nat, 1889-1979 is not used in this library's catalog.

Joint pseudonym of James Kendis, James Brockman, and Nat Vincent. For works of theses authors written under their own names, search also under: Kendis, James, 1883-1946;  Brockman, James;  Vincent, Nat, 1889-1979  

Try a search for Kenbrovin, Jaan