Water beetles of Maine : Including the families gyrindae, haliplidae, dytiscidae
Mallcolm, S.E.
Water beetles of Maine : Including the families gyrindae, haliplidae, dytiscidae - Orono 1971 - 49 p. - No. 48; Maine Life Science & A .
Water beetles of Maine : Including the families gyrindae, haliplidae, dytiscidae - Orono 1971 - 49 p. - No. 48; Maine Life Science & A .