Engstrand, I. W. (1982). Serra's San Diego: Father Junípero Serra and California's beginnings. San Diego Historical Society.
Čikaški stil citiranja (17. izdanje)Engstrand, Iris Wilson. Serra's San Diego: Father Junípero Serra and California's Beginnings. San Diego, Calif.: San Diego Historical Society, 1982.
MLA način citiranja (8. izdanje)Engstrand, Iris Wilson. Serra's San Diego: Father Junípero Serra and California's Beginnings. San Diego Historical Society, 1982.
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