TY - BOOK AU - Courtenay,Walter R. AU - Williams,James D. TI - Snakeheads (Pisces, Channidae): a biological synopsis and risk assessment T2 - U.S. Geological Survey circular SN - 0607937203 AV - QL638.C486 C68 2004 U1 - 597/.7 22 PY - 2004/// CY - Gainesville, FL PB - U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, Colo., U.S. Geological Survey, Branch of Information Services [distributor] KW - Snakeheads Fish KW - Local N1 - Includes bibliographical references (p. 129-143) ER -