Hydrilla : A new and rapidly spreading aquatic weed problem
Haller, W.T.
Hydrilla : A new and rapidly spreading aquatic weed problem - Gainesville 1976 - 13 p. - No. S-245; Florida University, .
Hydrilla : A new and rapidly spreading aquatic weed problem - Gainesville 1976 - 13 p. - No. S-245; Florida University, .