R.L. Polk & Co. (1909). Spokane blue book (householders directory), nineteen hundred and nine: Private address directory, ladies' calling and shopping guide, churches, clubs, theatres, apartment houses, etc. Volume 1.. R.L. Polk & co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)R.L. Polk & Co. Spokane Blue Book (householders Directory), Nineteen Hundred and Nine: Private Address Directory, Ladies' Calling and Shopping Guide, Churches, Clubs, Theatres, Apartment Houses, Etc. Volume 1.. Spokane: R.L. Polk & co., 1909.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)R.L. Polk & Co. Spokane Blue Book (householders Directory), Nineteen Hundred and Nine: Private Address Directory, Ladies' Calling and Shopping Guide, Churches, Clubs, Theatres, Apartment Houses, Etc. Volume 1.. R.L. Polk & co., 1909.
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