Dillon, J., Kjelland, J. M., & O´Reilly, J. Strictly strings: A comprehensive string method. Hightland, Etling Publishing.
Chicago-viite (17. p.)Dillon, Jacquelyn, James Martin Kjelland, ja John O´Reilly. Strictly Strings: A Comprehensive String Method. Newport: Hightland, Etling Publishing.
MLA-viite (8. p.)Dillon, Jacquelyn, et al. Strictly Strings: A Comprehensive String Method. Hightland, Etling Publishing.
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