Words for music perhaps, and other poems.

MLA

Yeats, W. B., Culture Class Collection (University of Pennsylvania) and English Culture Class Collection (University of Pennsylvania). Words for music perhaps, and other poems. [Shannon] : [Irish University Press], [1970]

APA

Yeats, W., Culture Class Collection (University of Pennsylvania) & English Culture Class Collection (University of Pennsylvania). (1970). Words for music perhaps, and other poems. [Shannon] : [Irish University Press].

Chicago

Yeats, W. B., Culture Class Collection (University of Pennsylvania) and English Culture Class Collection (University of Pennsylvania). Words for music perhaps, and other poems. [Shannon] : [Irish University Press], [1970]