APA Format
Elster, Robert J; Elster, Robert J. (2006).
International who's who in poetry 2007 / series editor, Robert J. Elster
. London :: Routledge,.
MLA Format
Elster, Robert J; Elster, Robert J.
International who's who in poetry 2007 / series editor, Robert J. Elster
. London :: Routledge,, 2006
Chicago Format
Elster, Robert J; Elster, Robert J. International who's who in poetry 2007 / series editor, Robert J. Elster. London :: Routledge,, 2006.