Many imitations of its kind can be found in libraries. O'Hara, J. D. Poetry . World of Culture Series. Check them out, the ideas discussed throughout the text, or in the introductory sections may be helpful. The Norton Anthology of Modern Poetry.
Many anthologies provide useful introductions to the subject.
In this particular anthology, a detailed bibliography is added. August House, 1985. Schocken Books, 1973. Essays on Poetry . PE1122 .S68 Stewart, Vincent.