A possibility for you could be found atSmith + Fong Co. They offer several click-together floors with no added formaldehyde that are 100% FSC certified.
Also, Bamboo Hardwoods, Inc offers click-together flooring with no added formaldehyde.
Good luck with your project,
For more information:
Read Mari Strain's Ask A Pro Q&A "Can you recommend healthy flooring for a home with kids and pets?"