American Psychological Association 6th edition

Fitch, M. A., & Jamison, R. E. (n.d.). Minimum sum covers of small cyclic groups.

ISO-690 (author-date, English)

FITCH, Mark A. and JAMISON, Robert E., [no date]. Minimum sum covers of small cyclic groups. .

Modern Language Association 9th edition

Fitch, M. A., and R. E. Jamison. Minimum Sum Covers of Small Cyclic Groups.

Mohr Siebeck - Recht (Deutsch - Österreich)

Fitch, Mark A./Jamison, Robert E.: Minimum sum covers of small cyclic groups,

Emerald - Harvard

Fitch, M.A. and Jamison, R.E. (n.d.). “Minimum sum covers of small cyclic groups”.

Warning: These citations may not always be 100% accurate.