APA (7th ed.) Citation
(2007). On tractability and congruence distributivity. Logical Methods in Computer Science.
Chicago Style (17th ed.) Citation
"On Tractability and Congruence Distributivity." Logical Methods in Computer Science 2007.
MLA (9th ed.) Citation
"On Tractability and Congruence Distributivity." Logical Methods in Computer Science, 2007.
Warning: These citations may not always be 100% accurate.