的最盛時期,全美有超過200間分店,只是到了薩克斯第三代接班人掌舵時,白塔樓漢堡的分店數目已經大減,後來更退出餐飲業務,轉為房地產投資。 Hogan, David Gerard. Selling 'em by the Sack: White Castle and the Creation of American
buluşuyor. Hürriyet. 1998-12-26 [2019-10-15]. (原始内容存档于2019-04-17) (土耳其语). David J. Hogan. UFO FAQ: All That's Left to Know About Roswell, Aliens, Whirling Discs
Mahidol University. 1979 [2022-02-13]. (原始内容 (PDF)存档于2021-06-05). Hogan, David W. Urak Lawoi' (Orang Laut). Smalley, William A. (编). Phonemes and Orthography:
Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. 1998: 1016. ISBN 1-884995-14-4. C. Michael Hogan. Morro Creek (页面存档备份,存于互联网档案馆)