Cita APA (7th ed.)

Walker, A. (1993). The Ghost of the Königsberg. Longman Kenya.

Cita Chicago (17th ed.)

Walker, Aussie. The Ghost of the Königsberg. Nairobi, Kenya: Longman Kenya, 1993.

Cita MLA (9th ed.)

Walker, Aussie. The Ghost of the Königsberg. Longman Kenya, 1993.