Ng'ang'a, J. N. N. (1998). Friendship. Taruma Vision Creators.
Cita Chicago (17th ed.)Ng'ang'a, John N. N. Friendship. Nairobi: Taruma Vision Creators, 1998.
Cita MLA (9th ed.)Ng'ang'a, John N. N. Friendship. Taruma Vision Creators, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.