Ledo, R. (1961). Language testing: The construction and use of foreign language tests. Longmans.
Chicago Style (17th ed.) CitationLedo, Robert. Language Testing: The Construction and Use of Foreign Language Tests. [London]: Longmans, 1961.
MLA (9th ed.) CitationLedo, Robert. Language Testing: The Construction and Use of Foreign Language Tests. Longmans, 1961.
Warning: These citations may not always be 100% accurate.