Seminar on Differential Equations and Dynamical Systems, I. (. :. U. o. M., & Yorke, J. A. (1969). Lectures. Berlin : Springer-Verlag.
Chicago-čujuhus (17. p.)Seminar on Differential Equations and Dynamical Systems, II (1969 : University of Maryland, juo James A. Yorke. Lectures. Berlin : Springer-Verlag, 1969.
MLA-čujuhus (9. p.)Seminar on Differential Equations and Dynamical Systems, II (1969 : University of Maryland, juo James A. Yorke. Lectures. Berlin : Springer-Verlag, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.