Richardson, G. R. (2006). Creating a space to grow: Developing your outdoor learning environment. D. Fulton Publishers.
Cita Chicago (17th ed.)Richardson, Gail Ryder. Creating a Space to Grow: Developing Your Outdoor Learning Environment. London: D. Fulton Publishers, 2006.
Cita MLA (9th ed.)Richardson, Gail Ryder. Creating a Space to Grow: Developing Your Outdoor Learning Environment. D. Fulton Publishers, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.