Sicherman, Carol. Ngugi wa Thiongʾo: A Bibliography of Primary and Secondary Sources, 1957-1987 - London; New York: H. Zell Publishers, 1989. - xx, 249 p. : ill. ; 22 cm. - Bibliographical research in African written literatures ; no. 1 . Includes indexes. ISBN: 090545071X : £35.00 LC Class. No.: Z 8624 .56 PR 9381 .9 .N45 / .S56 1989