HOTZE, S. (1988). A circle unbroken. Clarion Books.
Cita Chicago (17th ed.)HOTZE, Sollace. A Circle Unbroken. Clarion Books, 1988.
Cita MLA (9th ed.)HOTZE, Sollace. A Circle Unbroken. Clarion Books, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.