Gardner, W. H. (1945). Left handed writing: Instruction manual prepared for use in the school, clinic or home (Rev. ed.). The Interstate.
Παραπομπή σε μορφή Chicago (17η εκδ.)Gardner, Warren H. Left Handed Writing: Instruction Manual Prepared for Use in the School, Clinic or Home. Rev. ed. Danville, Ill.: The Interstate, 1945.
Παραπομπή σε μορφή MLA (8th εκδ.)Gardner, Warren H. Left Handed Writing: Instruction Manual Prepared for Use in the School, Clinic or Home. Rev. ed. The Interstate, 1945.
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