APA (7th ed.) Citation

Bitner, J. R., & Reingold, E. M. (1975). Backtrack Programming Techniques. Communications of the ACM, 18(11), 651. https://doi.org/10.1145/361219.361224

Chicago Style (17th ed.) Citation

Bitner, James R., and Edward M. Reingold. "Backtrack Programming Techniques." Communications of the ACM 18, no. 11 (1975): 651. https://doi.org/10.1145/361219.361224.

MLA (9th ed.) Citation

Bitner, James R., and Edward M. Reingold. "Backtrack Programming Techniques." Communications of the ACM, vol. 18, no. 11, 1975, p. 651, https://doi.org/10.1145/361219.361224.