1 2 3 Rosen, Daniel B. (2005-01-01). "Review: Historic Spots in California, by Douglas E. Kyle" . California History . 82 (4): 77– 78. doi : 10.2307/25161774 . ISSN 0162-2897 . JSTOR 25161774 .
1 2ワトソン、ダグラス S. (1940). "セオドア J. フーバー夫人、1872-1940" .カリフォルニア歴史協会季刊誌. 19 (3): 287. doi : 10.2307/25160898 . ISSN 0008-1175 . JSTOR 25160898 .
↑ Layne, J. Gregg (1948-12-01). "書評: CALIFORNIA LANDMARKS: A Photographic Guide to the State's Historic Spots, by James D. McClure" . The Quarterly: Historical Society of Southern California . 30 (4): 322– 323. doi : 10.2307/41169008 . ISSN 2162-9358 . JSTOR 41169008 .
↑ Butler, Phyllis (1973). 「Remain to Be Seen のレビュー」 . California Historical Quarterly . 52 (4): 373–374 . doi : 10.2307/25157474 . ISSN 0097-6059 . JSTOR 25157474 .