APA (7th ed.) Citation

Hartmanis, J., & Mahaney, S. R. (1980). An essay about research on sparse NP complete sets.

Chicago Style (17th ed.) Citation

Hartmanis, Juris, and Stephen R. Mahaney. An Essay About Research on Sparse NP Complete Sets. Ithaca, New York, 1980.

MLA (9th ed.) Citation

Hartmanis, Juris, and Stephen R. Mahaney. An Essay About Research on Sparse NP Complete Sets. 1980.