TY - BOOK AU - Clark, Ian D AU - Fritz, P TI - Environmental isotopes in hydrogeology SN - 1566702496 SN - 97021889 U1 - 551.49028 CLA PY - 1997/// CY - Boca Raton, FL PB - CRC Press/Lewis Publishers KW - Radioactive tracers in hydrogeology N1 - Includes bibliographical references (p. [291]-311) and index ER -