It's a Knockout [Model 010378], the Sinclair ZX Spectrum cass.. Arcade-History/Gaming/History the website. May 09, 2024. Available at https://www.arcade-history.com/?page=detail&id=79323. Accessed May 09, 2024.
BibTeX entry
@misc{gh:79323, author = {Arcade-History/Gaming-history}, title = {It's a Knockout [Model 010378], the Sinclair ZX Spectrum cass.}, year = {2024}, url = {"https://www.arcade-history.com/?page=detail\&id=79323"}, note = {[Online; accessed May 09, 2024]} }