"Q20 Bus Schedule". mta.nyc.ny.us. Metropolitan Transportation Authority. February 2, 1997. Archived from the original on February 2, 1997. Retrieved June 28, 2019.
"Q20 Bus Schedule". mta.nyc.ny.us. Metropolitan Transportation Authority. February 2, 1997. Archived from the original on February 2, 1997. Retrieved June 28, 2019.