Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Gerardo Machado:

"

Machado survived several attempts on his life. In the most famous, a violent opposition group, the ABC (abecedarios), assassinated the President of the Cuban Senate Clemente Vazquez Bello. They had constructed a tunnel to reach the Vazquez family crypt in Havana's Colón Cemetery and planted an explosive device there, anticipating that Machado would attend the funeral. The plan failed when the family decided to bury Vazquez in Santa Clara instead.[1]