APA
Onyango J. P., . (1994). A textbook of business statistics and calculations for K. A. T. C. Nairobi: East African Educational Publishers.
Chicago
Onyango John P, . 1994. A textbook of business statistics and calculations for K. A. T. C. Nairobi: East African Educational Publishers.
Harvard
Onyango J. P., . (1994). A textbook of business statistics and calculations for K. A. T. C. Nairobi: East African Educational Publishers.
MLA
Onyango John P, . A textbook of business statistics and calculations for K. A. T. C. Nairobi: East African Educational Publishers. 1994.