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John B. Gratzek
Identifiers
Open Library
OL3055699A
Top Subjects
Nature/Ecology (2)
Nature (2)
Pets (2)
Animals / Pets (2)
Fish (2)
Animals (1)
General (1)
Books by John B. Gratzek
Total count: 3
Fish Diseases & Water Chemistry
Tetra Press
1991-12-01
Fish breeding and genetics
1st ed.
Tetra Press
1992-01-01
The Science of Fish Health Management
Master Volume (Aquariology Series)
Tetra Press
1994-12-01