Hector, L. C. (1966). The handwriting of English documents (2nd ed.). Edward Arnold.
Dyfyniad Arddull ChicagoHector, L. C. The Handwriting of English Documents. 2nd ed. London: Edward Arnold, 1966.
Dyfyniad MLAHector, L. C. The Handwriting of English Documents. 2nd ed. Edward Arnold, 1966.
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