Ngugi wa Thiongo, 1. -. (1966). A grain of wheat. East African Educational Pub..
Chicago Style (17th ed.) ZitazioaNgugi wa Thiongo, 1938 -. A Grain of Wheat. Nairobi: East African Educational Pub., 1966.
MLA (9th ed.) ZitazioaNgugi wa Thiongo, 1938 -. A Grain of Wheat. East African Educational Pub., 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.