Wray, R. (2020). A Great Leap Forward. ELSEVIER.
Cita Chicago (17th ed.)Wray, Randall. A Great Leap Forward. ELSEVIER, 2020.
Cita MLA (8th ed.)Wray, Randall. A Great Leap Forward. ELSEVIER, 2020.
Atenció: Aquestes cites poden no estar 100% correctes.