APA (7e ed.) Bronvermelding

Vendler, H. H. (1969). On extended wings: Wallace Stevens' longer poems. Harvard University Press.

Chicago (17e ed.) Bronvermelding

Vendler, Helen Hennessy. On Extended Wings: Wallace Stevens' Longer Poems. Cambridge, Mass: Harvard University Press, 1969.

MLA (9e ed.) Bronvermelding

Vendler, Helen Hennessy. On Extended Wings: Wallace Stevens' Longer Poems. Harvard University Press, 1969.