00289nam a2200097Ia 4500008004100000082001800041100001900059245005700078260003300135700002300168220204s9999 xx 000 0 und d a573(035)bKEL aKeleti, Georg 0aHandbook of micromethods for the biological sciences aNew YorkbVan Nostrandc1974 aLederer, William H