WARDEN, C. (2015). Learning with nature: Embedding outdoor practice. SAGE.
Čikaški stil citiranja (17. izdanje)WARDEN, Claire. Learning with Nature: Embedding Outdoor Practice. SAGE, 2015.
MLA način citiranja (9. izdanje)WARDEN, Claire. Learning with Nature: Embedding Outdoor Practice. SAGE, 2015.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.