California Conquered: The Annexation of a Mexican Province, 1846-1850
"Harlow supersedes everyone else who has written about the  invasion and  occupation [of California] by the US because he summarizes the  literature of the  field, treats the story in great detail, keeps the narrative straight,  and  deftly weaves a large number of quotations into the text to allow the  characters  to speak for themselves. The book is, therefore, a mine of information  about the  end of the Mexican and the beginning of the American era."  --Choice"Long in the making, [California Conquered] is a work of love,  intelligence, talent, and dedication. It will be a standard by which  other  studies on the subject and on related topics will be weighed for many  years,  probably generations."  --John Porter Bloom, Western Historical Review