Butterick, George F. A guide to The Maximus poems of Charles Olson / George F. Butterick. - Berkeley : University of California Press, c1978. - lxvi, 816 p., [10] leaves of plates : ill. ; 24 cm. Includes index. Bibliography: p. 757-787. ISBN: 0520042700 LCCN: 75-027921 Subjects--Personal Names: Olson, Charles, 1910-1970. Maximus poems. Subjects--Index Terms: Văn học Mỹ Thơ LC Class. No.: PS3529.L655 / M332 Dewey Class. No.: 811.5 / BUT 1978