Gustaf Vasa. Libretto. Swedish. Public domain libretto, Library of Congress

af Joh. Henr. Kellgren ; första gången uppförd den 19 januari 1786. (statement of responsibility)
U.S. RISM Libretto Project.
Bookdealer's stamp--p. 1; foreword--p. 3-4; "Historiska upplysningar" (including biographical information on the different characters)--p. 66-70; "Anmärkningar (af utg.)"--p. 71-74; cast list for first performance of the work--p. 73.
"Musiken är ... af ... Jof. Gottlieb (eller Amadeus) Naumann"--p. 72.