TY - GEN AU - Wada, AU - Kadonaga, AU - Matsuo, TI - 15 N abundance in nitrogen of naturally occuring substances and global assessment of denitrification from isotopic viewpoint PY - 0000///[s.n.] CY - [S.l.] PB - 1975 KW - Ciclo do azoto KW - 001 w KW - D 23 N2 - Contém bibliografia ER -