^Cf. "Monogamy" in Britannica World Language Dictionary, R.C. Preble (ed.), Oxford-London 1962, p. 1275:1. The practice or principle of marrying only once. opp. to digamy now rare 2. The condition, rule or custom of being married to only one person at a time (opp. to polygamy or bigamy) 1708. 3. Zool. The habit of living in pairs, or having only one mate; The same text repeats The Shorter Oxford English Dictionary, W. Little, H.W. Fowler, J. Coulson (ed.), C.T. Onions (rev. & ed.,) Oxford 1969, 3rd edition, vol.1, p.1275; OED Online. March 2010. Oxford University Press. 23 Jun. 2010 Cf. Monogamy互联网档案馆的存檔,存档日期2015-06-23. in Merriam-Webster Dictionary
^Haupert, M. L.; Gesselman, Amanda N.; Moors, Amy C.; Fisher, Helen E.; Garcia, Justin R. Prevalence of Experiences With Consensual Nonmonogamous Relationships: Findings From Two National Samples of Single Americans. Journal of Sex & Marital Therapy. 2017-07-04, 43 (5): 424–440. ISSN 0092-623X. PMID 27096488. S2CID 6855648. doi:10.1080/0092623X.2016.1178675.