. . . "Who's the richest?"@en . . . . "Thirty thousand, or, Who's the richest? a comic opera, in three acts"@en . . . . . "Texts"@en . "Thirty thousand, or, Who's the richest? a comic opera in three acts"@en . . "Who is the richest"@en . . . . . "Thirty thousand; or, Who's the richest? A comic opera, in three acts"@en . . "Thirty thousand"@en . "Henry E. Huntington Library and Art Gallery." . . "Songsters." . . . .