Fresh-water invertebrates of the United States /
Pennak, Robert W.
Fresh-water invertebrates of the United States / by Robert W. Pennak. - 2d ed. - New York : Wiley, c1978. - xv, 803 p. : ill. ; 26 cm.
"A Wiley-Interscience publication."
Includes bibliographies and index.
0471042498
Freshwater invertebrates--United States.
QL141 / .P45 1978
592/.09/2973
Fresh-water invertebrates of the United States / by Robert W. Pennak. - 2d ed. - New York : Wiley, c1978. - xv, 803 p. : ill. ; 26 cm.
"A Wiley-Interscience publication."
Includes bibliographies and index.
0471042498
Freshwater invertebrates--United States.
QL141 / .P45 1978
592/.09/2973