A Brief History Of The U.S.-Mexican Border
A history of the southern border
San Ysidro/Otay Mesa: A sense of history and community pride - The San Diego Union-Tribune
San Diego–Tijuana - Wikipedia
Border Field State Park - Tijuana Estuary - TRNERR
A Mexican border town, near San Diego, Calif.; Old mission church, Mexico, Library Digital Collections
Immigrants Waiting 10 Years in US Just to Get a Court Date, Chicago News
Chronology: San Diego-Tijuana border region - The San Diego Union-Tribune
The development of tunnels along the US-Mexico border •
1 Dead, 1 Rescued in Waters Near US-Mexico Border Near San Diego – NBC 7 San Diego