Columbia subject headings:
Alien plants--California--Delta Region.
Alien plants--California--San Francisco Bay.
Animal introduction--California--Delta Region.
Animal introduction--California--San Francisco Bay.
Aquatic animals--California--Delta Region.
Aquatic animals--California--San Francisco Bay.
Aquatic plants--California--Delta Region.
Aquatic plants--California--San Francisco Bay.
Biological invasions--California--Delta Region.
Biological invasions--California--San Francisco Bay.
Estuarine ecology--California--Delta Region.
Estuarine ecology--California--San Francisco Bay.
Harvard subject headings:
Alien plants--California--Delta Region.
Alien plants--California--San Francisco Bay.
Animal introduction--California--Delta Region.
Animal introduction--California--San Francisco Bay.
Biological invasions--California--Delta Region.
Biological invasions--California--San Francisco Bay.
Estuarine ecology--California--Delta Region.
Estuarine ecology--California--San Francisco Bay.
Princeton subject headings:
Alien plants--California--Delta Region.
Alien plants--California--San Francisco Bay.
Animal introduction--California--Delta Region.
Animal introduction--California--San Francisco Bay.
Biological invasions--California--Delta Region.
Biological invasions--California--San Francisco Bay.
Estuarine ecology--California--Delta Region.
Estuarine ecology--California--San Francisco Bay.