Boltwood, H. L. (1886). A topical outline of general history: Designed as a guide to the general reader and for review work in schools. Scott, Foresman & Co..
Čikaški stil citiranja (17. izdanje)Boltwood, Henry L. A Topical Outline of General History: Designed as a Guide to the General Reader and for Review Work in Schools. Chicago: Scott, Foresman & Co., 1886.
MLA način citiranja (8. izdanje)Boltwood, Henry L. A Topical Outline of General History: Designed as a Guide to the General Reader and for Review Work in Schools. Scott, Foresman & Co., 1886.
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