Hagar, H. A., Hutchinson, E. L., & SoRelle, R. P. (1954). Words: Spelling, pronunciation, definition, and application (4th ed.). Gregg Pub. Division, McGraw-Hill.
Chicago (17e ed.) BronvermeldingHagar, Hubert A., Elsie Lillian Hutchinson, en Rupert Pitt SoRelle. Words: Spelling, Pronunciation, Definition, and Application. 4th ed. New York: Gregg Pub. Division, McGraw-Hill, 1954.
MLA (8e ed.) BronvermeldingHagar, Hubert A., et al. Words: Spelling, Pronunciation, Definition, and Application. 4th ed. Gregg Pub. Division, McGraw-Hill, 1954.
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