New York : New York University Press, 1975

Orono, Me. : National Poetry Foundation, University of Maine at Orono, 1983

Boston : G.K. Hall, 1978

München : Richard Boorberg, 2002

Boston, Mass. : G.K. Hall, 1983

Orono, Me. : National Poetry Foundation, University of Maine, 1990

Madison : University of Wisconsin Press, 1968

New York : Garland Pub., 1988

Boston, Mass. : G.K. Hall, 1981

New York, Octagon Books, 1968

Lanham, Md. : Scarecrow Press, 2009

Chapel Hill, NC : University of North Carolina Press, 1960

Boston, Mass. : G.K. Hall, 1986

Stanford, Calif., Stanford University Press, 1961

New York, New York University Press, 1971

Metuchen, N.J. : Scarecrow Press, 1982

Lausanne : Oxford : Institut Benjamin-Constant ; The Voltaire Foundation, 1980

De Kalb, Ill. : Northern Illinois University Press, 1982

Metuchen, N.J. : Scarecrow Press, 1988