Columbia subject headings:
Algae--Composition.
Photosynthesis.
Photosynthetic pigments.
Primary productivity (Biology)
Harvard subject headings:
Algae--Composition.
Photosynthesis.
Photosynthetic pigments.
Primary productivity (Biology)
Princeton subject headings:
Algae--Composition.
Photosynthesis.
Photosynthetic pigments.
Primary productivity (Biology)