Spender, S., & Hall, D. (1970). The concise encyclopedia of English and American poets and poetry (2nd ed. (revised in new format).). Hutchinson.
Dyfyniad Arddull ChicagoSpender, Stephen, and Donald Hall. The Concise Encyclopedia of English and American Poets and Poetry. 2nd ed. (revised in new format). London: Hutchinson, 1970.
Dyfyniad MLASpender, Stephen, and Donald Hall. The Concise Encyclopedia of English and American Poets and Poetry. 2nd ed. (revised in new format). Hutchinson, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.