Collier, P. (1993). Higgledy-Piggledy Liberalisation.
Cita Chicago (17th ed.)Collier, P. Higgledy-Piggledy Liberalisation. 1993.
Cita MLA (9th ed.)Collier, P. Higgledy-Piggledy Liberalisation. 1993.
Atenció: Aquestes cites poden no estar 100% correctes.