Columbia subject headings:
Harvard subject headings:
Spanish language--Grammar--Handbooks, manuals, etc.
Spanish language--Orthography and spelling--Handbooks, manuals, etc.
Spanish language--Vocabulary--Handbooks, manuals, etc.
Princeton subject headings:
Spanish language--Grammar--Handbooks, manuals, etc.
Spanish language--Orthography and spelling--Handbooks, manuals, etc.