Template:Did you know nominations/Sister exchange

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Sister exchange

Converted from a redirect by Ле Лой (talk). Self-nominated at 04:04, 3 September 2020 (UTC).

Template:Reflist-talk

  1. James, Wendy (1975). "Sister-Exchange Marriage". Scientific American. 233 (6): 84–94. doi:10.1038/scientificamerican1275-84. ISSN 0036-8733. Retrieved 2020-08-26.