Helen M. Leitman / Melanie R. Darst / Jeffery J. Nordhaus

UCR:31210025296615

Fishes

Ronald Hoffman / Edward J. Benz, Jr. / Leslie E. Silberstein / Helen Heslop / John Anastasi / Jeffrey Weitz

9781437729283 / 1437729282

Medical

Helen M. Light / Melanie R. Darst / J. W. Grubbs

IND:30000140219217

Nature

Helen M. Light / Suwannee River Water Management District (Fla.)

OSU:32435085225977

Science

Helen J. Challand

0516055119 / 9780516055114

Juvenile Nonfiction

Helen Osório

STANFORD:36105132383931

Brazil

Helen M. Leitman / Melanie R. Darst / Jeffery J. Nordhaus

UOM:39015037735563

Fishes

Helen M. Leitman / James E. Sohm / Marvin A. Franklin

OCLC:8606625

Hydrology

Helen M. Leitman / Florida. Coastal Zone Management Section / United States. National Oceanic and Atmospheric Administration

OCLC:43383686

Water quality management

Helen M. Leitman / Melanie R. Darst / Geological Survey (U.S.)

OCLC:45846875

Cypress swamp ecology

Carl R. Goodwin / E. R. Hedman / Gregory C. Lines / H. C. Mattraw / Helen M. Leitman / Jack T. Barraclough / John F. Elder / Peter Martin / R. A. Barker / Richard A. Smith / Stanley A. Druse / Thomas E. Reilly / William Edward Wilson / Geological Survey (U.S.) / Barney D. Lewis / D. M. Michaelis / Daniel J. Morrissey / Duncan J. Cairns / James E. Sohm / L. E. Dunlap / Robert M. Hirsch / Sherron D. Flagg / W. R. Osterkamp / James Richard Slack / Marvin A. Franklin / Rodger G. Jensen

LCCN:81607100

Aquifers

Carl R. Goodwin / E. R. Hedman / Gregory C. Lines / H. C. Mattraw / Helen M. Leitman / John F. Elder / Peter Martin / D. M. Michaelis / Daniel J. Morrissey / Duncan J. Cairns / James E. Sohm / W. R. Osterkamp / Marvin A. Franklin

LCCN:82600061

Apalachicola River Valley (Fla.)

Helen M. Leitman / James E. Sohm / Marvin A. Franklin

LCCN:82600246

Floodplain plants

Helen M. Leitman / Melanie R. Darst / Jeffery J. Nordhaus

OCLC:1249436238

Fishes