The innocents abroad; or, The new Pilgrim's progress;
being some account of the steamship Quaker City's pleasure excursion to Europe and the Holy land; with descriptions of countries, nations, incidents, and adventures as they appeared to the author ...
By Mark Twain (Samuel L. Clemens).

APA Citation

Twain, M. (1869). The innocents abroad; or, The new Pilgrim's progress: being some account of the steamship Quaker City's pleasure excursion to Europe and the Holy land; with descriptions of countries, nations, incidents, and adventures as they appeared to the author ... 1st ed., 1st issue. Hartford: American publishing company; [etc., etc.].

MLA Citation

Twain, Mark, 1835-1910. The Innocents Abroad; Or, The New Pilgrim's Progress: Being Some Account of the Steamship Quaker City's Pleasure Excursion to Europe And the Holy Land; With Descriptions of Countries, Nations, Incidents, And Adventures As They Appeared to the Author ... 1st ed., 1st issue. Hartford: American publishing company; [etc., etc.], 1869.

Warning: These citations may not always be complete (especially for serials).