Duncan, R. Ideas of the Meaning of form ; Often I am permitted to return to a meadow: Robert Duncan. American Poetologics and Poems by Twentieth-Century Poets.(1996).
Čikaški stil citiranja (17. izdanje)Duncan, Robert. "Ideas of the Meaning of Form ; Often I Am Permitted to Return to a Meadow: Robert Duncan." American Poetologics and Poems by Twentieth-Century Poets.(1996) .
MLA način citiranja (8. izdanje)Duncan, Robert. "Ideas of the Meaning of Form ; Often I Am Permitted to Return to a Meadow: Robert Duncan." American Poetologics and Poems by Twentieth-Century Poets.(1996), .
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