A runaway-replication plasmid pSY343 contains two ssi signals.

MLA

Bahk, J. D., et al. “A Runaway-Replication Plasmid PSY343 Contains Two Ssi Signals.” Plasmid, vol. 20, no. 3, Nov. 1988, pp. 266–70. EBSCOhost, https://doi.org/10.1016/0147-619x(88)90033-9.

APA

Bahk, J. D., Kioka, N., Sakai, H., & Komano, T. (1988). A runaway-replication plasmid pSY343 contains two ssi signals. Plasmid, 20(3), 266–270. https://doi.org/10.1016/0147-619x(88)90033-9

Chicago

Bahk, J D, N Kioka, H Sakai, and T Komano. 1988. “A Runaway-Replication Plasmid PSY343 Contains Two Ssi Signals.” Plasmid 20 (3): 266–70. doi:10.1016/0147-619x(88)90033-9.