Ashley, P. Natural resource diplomacy: Non-alignment versus regional co-operation.
Cita Chicago Style (17a ed.)Ashley, Paul. Natural Resource Diplomacy: Non-alignment Versus Regional Co-operation.
Cita MLA (9a ed.)Ashley, Paul. Natural Resource Diplomacy: Non-alignment Versus Regional Co-operation.
警告：這些引文格式不一定是100％准確.