Thomas’ presentation of this is mentioned on two pages of bahai.works/index.php?title=File:Baha'i_News_647.pdf, "ABS Conference commemorates Guardian's vision," Baha'i News no. 647, Feb, 1985, p. 3–5 (9th ABS conference, Nov 2-4 1984, Ottawa, CA).
Originally posted at bahaistudy.org, archived at archive.org.