TY - BOOK ED - National Drainage Symposium ED - American Society of Agricultural Engineers. TI - Advances in drainage: proceedings of the Fourth National Drainage Symposium, December 13-14, 1982, Palmer House, Chicago, Illinois T2 - ASAE publication SN - 091615047X (pbk.) AV - TC970 .N36 1982 U1 - 631.6/2�19 PY - 1982/// CY - St. Joseph, Mich. PB - American Society of Agricultural Engineers KW - Drainage ER -