https://mdcregister.commons.gc.cuny.edu/2018-04-19T19:35:50+00:00https://mdcregister.commons.gc.cuny.edu/mdc-registration-details/2018-11-24T00:02:32+00:00https://mdcregister.commons.gc.cuny.edu/unix-linux-python-online-registration-instructions/2019-03-27T18:44:32+00:00