Some observations on seasonal variations in plankton population Patuxent River, Maryland, 1943-1945

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100	1	⊔	‡aMorse, Dorothy Clum
245	1	0	‡aSome observations on seasonal variations in plankton population Patuxent River, Maryland, 1943-1945.
260	⊔	⊔	‡aSolomons Island, Md., ‡c1947.
300	⊔	⊔	‡a31 p. ‡billus. diagrs., ‡c23 cm.
490	0	⊔	‡aChesapeake Biological Laboratory, Solomons Island, Md. Publication ‡vno. 65
500	⊔	⊔	‡aAt head of title: State of Maryland, Department of Research and Education.
504	⊔	⊔	‡aIncludes bibliography.
538	⊔	⊔	‡aMode of access: Internet.
650	⊔	0	‡aPlankton.
710	1	⊔	‡aMaryland. ‡bBoard of Natural Resources. ‡bDept. of Research and Education.
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