(1955). Warp’s review workbooks (Revised 1955.). Warp Publishing Company.
Čikaški stil citiranja (17. izdanje)Warp’s Review Workbooks. Revised 1955. Minden, Nebraska: Warp Publishing Company, 1955.
MLA način citiranja (8. izdanje)Warp’s Review Workbooks. Revised 1955. Warp Publishing Company, 1955.
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