Harlan, William K., Probes: an introduction to poetry [by] William K. Harlan. - New York, Macmillan [1973] - xii, 388 p. illus. 24 cm. LCCN: 72083762 Subjects--Topical Terms: Poetry--Collections. LC Class. No.: PN6101 / .H33 Dewey Class. No.: 821.008