Warren Penn, R. Foreword to Brother to Dragons: A Play in Two Acts / Robert Warren Penn. Robert Penn Warren's "Brother to Dragons" : a discussion.(1983).
Chicago-Zitierstil (17. Ausg.)Warren Penn, Robert. "Foreword to Brother to Dragons: A Play in Two Acts / Robert Warren Penn." Robert Penn Warren's "Brother to Dragons" : A Discussion.(1983) .
MLA-Zitierstil (8. Ausg.)Warren Penn, Robert. "Foreword to Brother to Dragons: A Play in Two Acts / Robert Warren Penn." Robert Penn Warren's "Brother to Dragons" : A Discussion.(1983), .
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.