00301nam a2200097Ia 4500008004100000082002000041100004700061245006000108260002700168300000800195140113s9999 xx 000 0 und d a628.5(047) L4 a"Pfaffin, James. R. & Ziegler, Edward. N." aAdvance in environmental Science and engineering vol. 1 a1979bGordoncNew York a276