March 1, 1952 by Caroline Letkeman Memorandum: To All Affiliated Better Business Bureaus re: Hubbard Dianetics Foundation, etc. (March 1, 1952) Author: Business Protective Bureau, Wichita View online: archive.org … [Read more...] about Memorandum: To All Affiliated Better Business Bureaus re: Hubbard Dianetics Foundation, etc. (March 1, 1952)