Dotsie, I've read the statistic in a number of articles relating to the inequality of land ownership, between the genders, since it first appeared in a report on the Fourth World Conference on Women, Beijing, China-September 1995-
Action for Equality, Development and Peace. Here's a quick link to an overview from 1999:
Position Papers: Land Resources Land Management by Diana Lee-Smith, Gender Unit,UNCHS (Habitat) and Catalina Trujillo, Women and Habitat Programme, UNCHS (Habitat},in consultation with the Huairou Commission, 26th October 1999

http://www.earthsummit2002.org/wcaucus/Caucus%20Position%20Papers/land/land.htm

This statistic is once again quoted by Jack Holland in Misogyny: The World's Oldest Prejudice.
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Jeannine Schenewerk
www.intouchwithjeannine.com
[i]'It's never too late in Fiction-- or in Life to Revise.'
---Nancy Thayer