APA (7th ed.) Citation

Ledo, R. (1961). Language testing: The construction and use of foreign language tests. Longmans.

Chicago Style (17th ed.) Citation

Ledo, Robert. Language Testing: The Construction and Use of Foreign Language Tests. [London]: Longmans, 1961.

MLA (9th ed.) Citation

Ledo, Robert. Language Testing: The Construction and Use of Foreign Language Tests. Longmans, 1961.

Warning: These citations may not always be 100% accurate.