APA (7th ed.) Citation

Janko, Z., & Tonchev, V. D. (1998). New designs with block size 7. Journal of combinatorial theory, 83(1), . https://doi.org/10.1006/jcta.1997.2859

Chicago Style (17th ed.) Citation

Janko, Zvonimir, and Vladimir D. Tonchev. "New Designs with Block Size 7." Journal of Combinatorial Theory 83, no. 1 (1998). https://doi.org/10.1006/jcta.1997.2859.

MLA (9th ed.) Citation

Janko, Zvonimir, and Vladimir D. Tonchev. "New Designs with Block Size 7." Journal of Combinatorial Theory, vol. 83, no. 1, 1998, https://doi.org/10.1006/jcta.1997.2859.