Renewal: White Flight and the Animal Ghetto (2015) focus on San Diego zoo; excerpt Wegeforth, H.M. & Morgan, N. 1953. It Began with a Roar: the Beginning of the World-Famous San Diego Zoo (revised edition). (California: Crest Offset Printing Company) External links PBS Nature: San Diego Zoo Balboa Park YouTube channel Zoos in California 1916 establishments in California Parks in San Diego Zoo Landmarks in San Diego Zoos established in 1916