environmental protocol

international law

en-GB/ɪnˌvaɪəɹənˈmɛntl ˈpɹəʊtəˌkɒl/
en-US/ɪnˌvaɪɹənˈmɛnəl ˈpɹoʊtəˌkɑl/

الفئات:

protocol