Joseph Rife, Joshua Woods and Joseph Rife, (eds.), "Transactions of the Second International Symposium on Molinology, Danmark, May, 1969" in Transactions of the Second International Symposium on Molinology, Danmark, May, 1969 entry published June 28, 2023, https://caesarea-maritima.org/bibl/2L3869ZPAndersJespersenSantosSimõesRexWailesJ. KennethMajorPieterGrootTransactions of the Second International Symposium on Molinology, Danmark, May, 1969https://caesarea-maritima.org/bibl/2L3869ZPhttps://www.zotero.org/groups/caesarea-maritima/items/2L3869ZPhttps://www.zotero.org/groups/2320447/items/2L3869ZPLingbyThe International Molinological Society1977
  Jespersen, Anders, Santos Simões, Rex Wailes, J. Kenneth Major, and Pieter Groot, eds. Transactions of the Second International Symposium on Molinology, Danmark, May, 1969. Lingby: The International Molinological Society, 1977. https://www.worldcat.org/title/transactions-of-the-2-international-symposium-on-molinology-danmark-may-1969/oclc/842217227&referer=brief_results#details-allauthors.
Anders Jespersen et al., eds., Transactions of the Second International Symposium on Molinology, Danmark, May, 1969 (Lingby: The International Molinological Society, 1977), https://www.worldcat.org/title/transactions-of-the-2-international-symposium-on-molinology-danmark-may-1969/oclc/842217227&referer=brief_results#details-allauthors.