APA (7th ed.) Citation
(2012). Piecewise testable tree languages. Logical Methods in Computer Science.
Chicago Style (17th ed.) Citation
"Piecewise Testable Tree Languages." Logical Methods in Computer Science 2012.
MLA (9th ed.) Citation
"Piecewise Testable Tree Languages." Logical Methods in Computer Science, 2012.
Warning: These citations may not always be 100% accurate.