Columbia subject headings:
Electron microscopy--Technique.
Microorganisms--Morphology.
Microscopy--Technique.
Ultrastructure (Biology)
Harvard subject headings:
Electron microscopy--Technique
Microorganisms--Morphology
Microscopy--Technique
Ultrastructure (Biology)
Princeton subject headings:
Electron microscopy--Technique.
Microorganisms--Morphology.
Microscopy--Technique.
Ultrastructure (Biology)