TY - GEN AU - Robertson,R A AU - Irvine,J C AU - Dobson,M E TI - A Contribution to the Chemistry and Physiological Action of the Humic Acids SN - 0264-6021 PY - 2006///0605 N1 - Publication Type: Journal Article UR - https://doi.org/10.1042/bj0020458 ER -