APA-čujuhus (7. p.)
Palmer, J. (1998). Environmental education in the 21st century: Theory, practice, progress and promise. Routledge.
Chicago-čujuhus (17. p.)
Palmer, Joy. Environmental Education in the 21st Century: Theory, Practice, Progress and Promise. London ; New York: Routledge, 1998.
MLA-čujuhus (9. p.)
Palmer, Joy. Environmental Education in the 21st Century: Theory, Practice, Progress and Promise. Routledge, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.