Columbia subject headings:
English language--Graphemics.
Grammar, Comparative and general--Phonology.
Graphemics.
Written communication.
Harvard subject headings:
English language--Graphemics
Grammar, Comparative and general--Phonology
Graphemics.
Written communication.
Princeton subject headings:
English language--Graphemics.
Grammar, Comparative and general--Phonology.
Graphemics.
Written communication.